To see the other types of publications on this topic, follow the link: Environmental aspects of Coal mines and mining.
Journal articles on the topic 'Environmental aspects of Coal mines and mining'
Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles
Consult the top 50 journal articles for your research on the topic 'Environmental aspects of Coal mines and mining.'
Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.
You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.
Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.
1
Feofanov, Andrey. "Geoecological Aspects of Coal Mining in Donets Basin." Natural Systems and Resources, no. 4 (December 2021): 5–14. http://dx.doi.org/10.15688/nsr.jvolsu.2021.4.1.
Full textAbstract:
Donets Coal Basin (the Donbass Coalfield) with its multi-million population is a concentration of all kinds of industries. These include iron and steel industry, machine-tool manufacture, mining production, byproduct coke industry, and also agriculture. Above all others it is coal-mining industry which coming of age and subsequent development is invariably connected with the evolutionary existence of this region. Coal mining, like any production, has its own negative aspects that adversely affect ecology of the region. The article overviews a number of essential geoecological aspects related to deep coal mining and shale gas production in Donets Basin which, taken as a whole and in isolation from one another, deform ground surface and surface buildings, flood the near-surface area, affect underground water inflow, dewater surface watercourses, increase background radiation, etc. The vast majority of harmful geoecological impacts are accounted for by legal operating coal mines and illegal ones – the so-called kopanki. Primarily just mines deform and kopanki sometimes distort surface landscape, creating at the same time a hazard to the safety of surface buildings. Faulty operation and the same kind abandonment of such industries lead to an increase in inflow of aggressive groundwater, pollution of safe drinking water sources, drying of surface watercourses that only worsen the environmental geology of the region. A catastrophe waiting to happen in the region is the so-called old mine workings abandoned at coal seam outcrops since early days through present of coal industry. They are hazardous due to their sinkhole collapse and deformation unpredictability for ground surface areas that fall within their affected zone. The more so because at most mining plans of old mines have not been preserved. Just as either there are no plans or they are completely lack for operating illegally private shallow mines, including kopanki. The planned shale gas production in Donets Coal Basin to be commenced since that year will significantly put a strain on environmental geology of the region with far-reaching negative consequences.
2
Czaplicka-Kolarz, Krystyna, Dorota Burchart-Korol, Marian Turek, and Wojciech Borkowski. "Model Of Eco-Efficiency Assessment Of Mining Production Processes." Archives of Mining Sciences 60, no. 2 (June 1, 2015): 477–86. http://dx.doi.org/10.1515/amsc-2015-0031.
Full textAbstract:
Abstract The paper presents an author’s method of eco-efficiency assessment of mining production processes in hard coal mines, which enables integrating results of evaluating both environmental and economic aspects. The proposed method uses life cycle approach to assess environmental efficiency and the result of operating activities to assess economic efficiency. The comprehensive method of assessing mining production processes was proposed as the Key Performance Indicator (KPI) in hard coal mines in Poland to be used to support decision making in mining companies.
3
Krawczyk, Piotr, Marzena Majer, and Joanna Krzemień. "Proposal of Economic Assessment of Hard Coal Mines Operation Conducted in Polish Conditions with the Use of Cost Benefit Analysis." Archives of Mining Sciences 61, no. 4 (December 1, 2016): 875–92. http://dx.doi.org/10.1515/amsc-2016-0058.
Full textAbstract:
Abstract The paper presents possibilities of an economic evaluation of hard coal mines, using Cost Benefit Analysis (CBA). Suggested methodology for CBA applied to the economic evaluation of a mine allows to conduct a complex evaluation of mine’s functionality in connection to Polish conditions. Additionally to financial aspects, significant from the point of view of the mine’s owner, the paper includes social and environmental effects as a result of mining activities. Proposed methodology has undergone tests which used averaged data obtained from two selected hard coal mines located in the Upper Silesian Coal Basin. Presented results confirm the validity of social costs and benefits, and environmental losses resulting from mining operation, which were included in analysis comprehensively evaluating the efficiency of hard coal mines.
4
BRYK, Dmytro, Oleg GVOZDEVYCH, Lesya KULCHYTSKA-ZHYHAYLO, and Myroslav PODOLSKYY. "Technogenic carbonaceous objects of the Chervonohrad mining and industrial district and some technical solutions for their using." Geology and Geochemistry of Combustible Minerals 4, no. 181 (December 27, 2019): 45–65. http://dx.doi.org/10.15407/ggcm2019.04.045.
Full textAbstract:
Ukraine has significant coal resources. Chervonohrad Mining and Industrial District is the main coal complex in the west of Ukraine. In recent years, the average annual coal production in the mines of Chervonohrad Mining and Industrial District has amounted to 1.5 bn t, coal ash varies over a wide range of 25 to 53 %, average coal ash content of about 40 %. Coal mining has produced millions of tons of coal waste every year. Concentration of technogeneous coal objects (mines, mining infrastructure, coal-mining waste dumps and wastes of coal enrichment) in a relatively small area has caused environmental degradation. Therefore, technological and environmental aspects of carbon-containing technogenic objects are particularly important and actual. Coal-waste dumps in the territory of Chervonohrad Mining and Industrial District are characterized in detail. The dumps cover different areas – from 9–10 to 29–30 ha, the height of the dumps reaches 62 m at the mostly heights of 25–40 m. The total waste deposit in the dumps of existing mines has a volume of more than 20 million m3. The coal wastes from Mezhyrichanskaya mine coal-waste dump was investigated to determine the suitability for thermochemical processing. Technical characteristics of taken coal-waster samples is presented. The technogenic carbonaceous objects and the impact to the environment are evaluated. The developed and patented technical and technological solutions for the technogenic carbonaceous objects using are considered. It is shown that the concept of industrial development of coal wastes dumps is based on two aspects – extraction of valuable mineral components and energy utilization of carbonaceous wastes of coal production. Its patented as Patents of Ukraine technological schemes for terrestrial process in of solid carbonaceous raw material from dumps and sludges with the production of coal tar and synthesis gas CO + H2 are presented, as well as the scheme of a system for utilization of heat from coal dump. Recommendations for the implementation of innovative technologies are based on the results of the laboratory research. The purpose of the resolution is to obtain valuable components and energy from coal wasters while improving the environment.
5
Zhang, Jixiong, Meng Li, Abbas Taheri, Weiqing Zhang, Zhongya Wu, and Weijian Song. "Properties and Application of Backfill Materials in Coal Mines in China." Minerals 9, no. 1 (January 17, 2019): 53. http://dx.doi.org/10.3390/min9010053.
Full textAbstract:
Coal is the basic resource underpinning energy generation in China, however, constant, large-scale mining of coal results in many problems such as ecological destruction of mining areas. As a result, backfilling of solid waste underground is proposed to control strata and surface subsidence and to protect the environment. At present, these materials, such as granular material, cemented material and high-water-content materials are mainly used for backfilling. This study summarised the types of backfill materials that are used in coal mines in China along with the backfilling process. Moreover, distribution and characteristics of mines backfilled with these backfill materials were obtained and analysed. Considering the socio-environmental aspects that affect backfilling, this research proposed a guideline for the selection of backfill materials and then analysed specific engineering cases of three backfill materials. In addition, the future development of backfill materials was discussed. With extensive extraction of shallow coal resources in China and, therefore, rapid depletion of coal resources in eastern regions of China, coal mining depth is increasing significantly. As a result, it is required to investigate new backfill materials suited for the deep high-stress environment.
6
Arasteh, Hossein, Gholamreza Saeedi, and Mohammad Ali Ebrahimi Farsangi. "RISK ASSESSMENT OF LONGWALL MINING DUE TO COAL FACE FAILURE." Rudarsko-geološko-naftni zbornik 37, no. 5 (2022): 39–52. http://dx.doi.org/10.17794/rgn.2022.5.4.
Full textAbstract:
Face failure is a typical phenomenon in longwall coal mines that can have a wide range of consequences. Face failure, which includes wall spall and roof collapse occurrences, is a hazardous virus that, if not managed, spreads fast across all stages of coal mining and has the potential to disable the mine. Based on this research, face failure may have a detrimental influence on technical, environmental, community, safety, and economic concerns, and its negative effects will leave an unfavourable legacy for the future. As a result, these impacts can be mitigated by effective management and risk management approaches. The quantitative and qualitative face failure risk model provided in this study has a considerable potential as a suitable tool for decision makers to analyse failure risk. Face failure-related high-risk variables can be discovered using this approach, which also makes comparing various mines easier from a face failure aspect. For validation, the model was evaluated in the Parvadeh, Negin and Pabedana coal mines. The study’s findings revealed that Parvadeh’s face failure risk factor was 5058, indicating a high risk in this mine due to mechanized mining. Furthermore, the scores of the Negin and Pabedana mines were computed as 3019 and 3165, respectively, indicating that they were in the moderate risk category owing to traditional mining.
7
Bijańska, Jolanta, Aleksandra Kuzior, and Krzysztof Wodarski. "Social Perception of Hard Coal Mining in Perspective of Region’s Sustainable Development." Management Systems in Production Engineering 26, no. 3 (September 1, 2018): 178–83. http://dx.doi.org/10.1515/mspe-2018-0029.
Full textAbstract:
Abstract This article presents a pilot study on the local community’s social perception regarding coal mines in Upper Silesia. The research was performed in connection with the smog, which was persistent and harmful to residents during the winter months of 2016. The researchers put forward to the local community the following two survey questions: 1. Is the image of coal mines in the eyes of the local community positive or negative? 2. Are coal mines socially responsible and is coal a good energy source? The aim of this article is to indicate the relationship of the local community to the presence of hard coal mines in the neighbourhood and their social role. Also, this work looks to identify the nuisances perceived by the inhabitants of the examined region about mining enterprises and whether these burdens should result in abandonment of hard coal mining. Pilot studies were conducted with the use of a diagnostic survey. The study was carried out in January 2017 on a sample of 267 people, comprising Silesian University of Technology students residing in Upper Silesia. An environmental survey technique was used. The researchers hypothesise that the image of mining and coal as a fuel for the local community is negative and the mines are not socially responsible enterprises. This research shows that the operation of mines is essential for society and its stability as it affects economic, social and energy safety. A large proportion of the respondents defined the image of mining as positive (108 people), but 76 people indicated that the image was rather negative. Most respondents pointed to the benefits of the mine’s operation. Opinions on social responsibility were divided, and most respondents failed to provide concrete examples of social engagement, so the first hypothesis was partly confirmed. Although the respondents pointed to various nuisances resulting from the mining companies operating in their environment, they also recognised significant social aspects related to employability and access to relatively cheap fuel. However, they do not realise the social involvement of mines, which is one of the conditions of sustainable development. Pilot studies allowed for the initial identification of problems and verification of the research tool utilised in this study.
8
Katz, Mike. "International Professional Development Cooperation Study Tours for Environmental, Social and Sustainable Development for the Indian Mining Sector." Journal of International Cooperation and Development 5, no. 2 (July 5, 2022): 1. http://dx.doi.org/10.36941/jicd-2022-0006.
Full textAbstract:
The Key Centre for Mines International, University of New South Wales, Sydney Australia undertook professional development mining education and cooperation training study tours for overseas government fellows and groups as well as private mining companies from 1988 – 2010. During the technical environmental development short courses at the university and visits to Australian mines and government offices, the programs also covered important social and sustainable aspects as well as relevant briefings on government mining law and regulations, industry’s best practice and community engagement. Details are presented for two major successful international cooperation Indian projects, a World Bank mine environment program in 2004 for state government officials and a TATA Steel Limited coal and iron mine executives and managers training program in 2010.
Received: 21 April 2022 / Accepted: 30 June 2022 / Published: 5 July 2022
9
Liu, Ann Y., Frank C. Curriero, Thomas A. Glass, Walter F. Stewart, and Brian S. Schwartz. "Associations of the Burden of Coal Abandoned Mine Lands with Three Dimensions of Community Context in Pennsylvania." ISRN Public Health 2012 (May 10, 2012): 1–11. http://dx.doi.org/10.5402/2012/251201.
Full textAbstract:
Background. Pennsylvania, with thousands of abandoned coal mines and miles of streams polluted with acid mine drainage, has the largest domestic coal mining burden contributing to deterioration of communities. Objectives. To evaluate contextual aspects by examining associations between coal abandoned mine lands (AML) and community measures of socioeconomic deprivation, social disorganization, and physical disorder. Methods. AML exposure data from the Reclaimed Abandoned Mine Land Inventory System were used to create density, diversity, accessibility, and clustering metrics. The three community context outcome measures were comprised of 14 census variables. In community-level analyses, 10 AML variables were evaluated separately with each dimension of community context, adjusting for covariates, in communities with and without abandoned mines. Results. We observed consistent associations between higher AML burden and worse socioeconomic deprivation, negative relations with social disorganization, but no statistically significant associations with physical disorder. Six of 10 AML variables were associated with socioeconomic deprivation, many consistently exhibiting exposure-effect patterns of worse deprivation with greater AML. Conclusions. Higher AML was associated with higher socioeconomic deprivation. These results can help prioritize the use of Surface Mining Control and Reclamation Act funds and inform decisions regarding Marcellus shale drilling to prevent analogous environmental degradation and public health impacts.
10
Triady, Devi, and Dewi Saraswati. "Coal mine management in East Kalimantan: a review of public policy." Monas: Jurnal Inovasi Aparatur 3, no. 2 (December 31, 2021): 342–51. http://dx.doi.org/10.54849/monas.v3i2.89.
Full textAbstract:
The problems posed by coal mining in East Kalimantan have an environmental impact and an imbalance of economic growth with social development. In practice, mine management that does not meet the principles of good management, such as corrupt practices, uncontrolled mining permits, indicates the need for a particular study related to coal mining policies and regulations in East Kalimantan Province. Therefore, this paper is intended to analyze aspects of coal mining policy and regulation as well as policy implications to improve coal mining governance, especially in the perspective of preventing corruption in coal mining management in East Kalimantan. This research uses the desk study method with descriptive analysis of related literature related to coal mining management, especially in East Kalimantan. The results of this study indicate that the governance of coal mining in East Kalimantan needs to be improved in the context of Law Number 3 of 2020 concerning Amendments to Law Number 4 of 2009 concerning Mineral and Coal Mining through the application of natural resource management principles as well as the application of the concept of governance. , the need to improve policies and governance of coal mines (licensing, transparency, and law enforcement) and the need to strengthen the institutional system in the management of this mine.
11
Fidalgo Valverde, Gregorio, Adam Duda, Francisco Javier Iglesias Rodríguez, Aleksander Frejowski, and Ivan Todorov. "Groundwater Risk Assessment in the Context of an Underground Coal Mine Closure and an Economic Evaluation of Proposed Treatments: A Case Study." Energies 14, no. 6 (March 17, 2021): 1671. http://dx.doi.org/10.3390/en14061671.
Full textAbstract:
Mining companies are responsible for the impacts that result from their mining activities even after the mining period has ended. At the same time, at the European and international levels, there is a lack of a detailed operational methodology comprising environmental risks during and after closure of underground coal mines. The environmental risk aspects that need to be considered when planning the closure of an underground coal mine and post closure in the broader environmental context are the following: modification of water flow scheme, surface instability, mine gas emission on the surface, and water and soil pollution. In this study, we focus on assessing groundwater risk in the context of an underground coal mine closure and evaluating the selected risk mitigation strategies in terms of performance and cost. The results from this study could be used for developing a final closure groundwater assessment plan by selecting the most feasible treatment alternatives for different environmental impacts, together with the transitional monitoring that could guarantee a hazard level in compliance with land reuse and the use of natural resources. Finally, the cost-efficient monitoring and treatment programs are used to estimate the financial provisions needed to mitigate groundwater risks during underground coal mine closure contexts.
12
He, Lin, Dongliang Yuan, Lianwei Ren, Ming Huang, Wenyu Zhang, and Jie Tan. "Evaluation Model Research of Coal Mine Intelligent Construction Based on FDEMATEL-ANP." Sustainability 15, no. 3 (January 25, 2023): 2238. http://dx.doi.org/10.3390/su15032238.
Full textAbstract:
To improve intelligent construction standard systems in coal mines, we must promote the high-quality development of the coal mining industry. The current intelligent construction of coal mines is inefficient. Considering the complexity and diversity of coal mine intelligent construction index factors, this paper proposes an intelligent coal mine construction evaluation model that integrates the fuzzy decision-making trial and evaluation laboratory (FDEMATEL) and the analytical network process (ANP). Firstly, the evaluation index system is established based on the intelligent construction of coal mines. Secondly, the FDEMATEL is applied to deal with the fuzziness in the evaluation process and determine the influence relationship between the evaluation indexes of coal mine intelligent construction to draw the ANP network structure diagram. Finally, super decision software is used to calculate the weight of coal mine intelligent construction evaluation indexes, and then obtain the combination weight and correlation degree of each evaluation index. By applying the evaluation model to conduct a comprehensive evaluation of coal mine intelligent construction, the results show that there is a significant correlation between the indexes affecting the intelligent construction of coal mines. Basic platform intelligence and safety monitoring intelligence are the two most important aspects of intelligent coal mine construction. Database construction, mobile internet construction, big data support, and model algorithm support are the key indexes affecting the intelligent construction of coal mines.
13
Zhang, Meng, and Dan Fang. "Study on Stress Distribution Law of High-Efficiency Paste Backfilling Working Face with Solid Waste in Thick Coal Seam." Advances in Materials Science and Engineering 2020 (December 22, 2020): 1–13. http://dx.doi.org/10.1155/2020/6631617.
Full textAbstract:
The high-efficiency paste backfilling mining technology of solid waste in thick coal seam above 6 m is a complex system engineering, which involves mining, backfilling, supporting, subsidence, safety, and other aspects, so it is of great strategic significance to study the technology. In this paper, on the basis of comprehensive research methods such as laboratory experiments, theoretical analysis, computer programming, and other comprehensive research methods, aiming at the problems of low production capacity and high paste backfilling cost, taking the mining of No. 3 Coal Seam under buildings in Lu’an area as the research object, the stress distribution law of high-efficiency paste backfilling working face with solid waste in more than 6-meter-thick coal seam was carried out. The main achievements are as follows: On the basis of the theoretical establishment of the program method for the instability discriminant analysis of roof rock beam failure with the change of backfilling body unit strength with time, a numerical calculation model considering the change process of backfilling body strength is established. The stress distribution analysis of the E1302 working face before and during the mining process plays a guiding role in the actual production of the whole working face and roadway. The research results support the sustainable development of coal mining enterprises from technology, which has great economic, social, and environmental benefits, and can promote the industrialization of green mining high-tech in Shanxi Province and even the whole country and can promote the green mining technology progress of paste backfilling in coal mines in China, which is of great significance to the sustainable development of mining production and environmental construction.
14
Cao, Dai Yong, Cen Li Huang, Jian Wu, Huan Tong Li, and Yong Dong Zhang. "Environment Carrying Capacity Evaluation of Coal Mining in Shanxi Province." Advanced Materials Research 518-523 (May 2012): 1141–44. http://dx.doi.org/10.4028/www.scientific.net/amr.518-523.1141.
Full textAbstract:
China will meet an increasing demand of the energy because of the growth of the economy, coal is being mined largely as the most important energy, but the mining brought in a series of construction of ecological environment problems. This paper established a comprehensive evaluation model for environmental impact of coal mining through three aspects of ecological stability, resource and environment carrying capacity, coal mining pressure with analytic hierarchy process (AHP). Based on this model, authors have evaluated the regional difference of ecological environment carrying capacity of coal mining areas in Shanxi province. The study results may be helpful to scientifically draw up the coal resources development strategy.
15
Grodzicka, Aneta, Franciszek Plewa, Marcin Krause, Andrzej Figiel, and Magdalena Rozmus. "Selection of Employees for Performing Work Activities in Currently Used Ventilation Systems in Hard Coal Mining." Energies 15, no. 2 (January 6, 2022): 408. http://dx.doi.org/10.3390/en15020408.
Full textAbstract:
The way in which rescue actions are carried out in a hard coal mine is conditioned by a number of factors, including the type, scale, and location of the hazard; location of employees at the danger and level of their endangerment; and the ventilation system used in the impacted area. In this article, the importance and necessity to take into account a human factor, specifically the propensity for risky behavior, alongside the selection of rescuers for rescue action is pointed out. As an introduction to the key research studies presented in this article, main ventilation systems used in hard coal mines are described and three real cases of natural hazard occurrences in hard coal mines are discussed. An analysis of these events has shown that the degree of difficulty of a rescue action depends, among other aspects, on the ventilation system applied. Next, a study covering a synthetic assessment of 25 mining rescuers taking into account the ‘risky behavior’ parameter is presented. The results were interpreted considering the—described earlier—cases of hazard occurrence in coal mines and ventilation systems applied there. For the research sample, a selection of rescuers to carry out actions in particular types of ventilation systems, taking as a criterion the mark they obtained in the synthetic assessment, is proposed.
16
Engström, Karl Gunnar, John Angrén, Ulf Björnstig, and Britt-Inger Saveman. "Mass Casualty Incidents in the Underground Mining Industry: Applying the Haddon Matrix on an Integrative Literature Review." Disaster Medicine and Public Health Preparedness 12, no. 1 (June 8, 2017): 138–46. http://dx.doi.org/10.1017/dmp.2017.31.
Full textAbstract:
AbstractObjectiveUnderground mining is associated with obvious risks that can lead to mass casualty incidents. Information about such incidents was analyzed in an integrated literature review.MethodsA literature search (1980-2015) identified 564 modern-era underground mining reports from countries sharing similar occupational health legislation. These reports were condensed to 31 reports after consideration of quality grading and appropriateness to the aim. The Haddon matrix was used for structure, separating human factors from technical and environmental details, and timing.ResultsMost of the reports were descriptive regarding injury-creating technical and environmental factors. The influence of rock characteristics was an important pre-event environmental factor. The organic nature of coal adds risks not shared in hard-rock mines. A sequence of mechanisms is commonly described, often initiated by a human factor in interaction with technology and step-wise escalation to involve environmental circumstances. Socioeconomic factors introduce heterogeneity. In the Haddon matrix, emergency medical services are mainly a post-event environmental issue, which were not well described in the available literature. The US Quecreek Coal Mine incident of 2002 stands out as a well-planned rescue mission.ConclusionEvaluation of the preparedness to handle underground mining incidents deserves further scientific attention. Preparedness must include the medical aspects of rescue operations. (Disaster Med Public Health Preparedness. 2018;12:138–146)
17
Petenko, I. V., and I. V. Kochura. "Management concept of economic potential development of Donbass coal mining enterprises." Russian Journal of Industrial Economics 13, no. 2 (July 2, 2020): 193–205. http://dx.doi.org/10.17073/2072-1633-2020-2-193-205.
Full textAbstract:
Balanced development of all aspects of a company’s activity requires creating appropriate development strategies with economic potential as the basic category. The issue of efficient company management and its development is connected with the management of its economic potential development. Special attention should be drawn to Donbass coal mining enterprises which have been seriously affected by the political situation in the state environment of the Ukraine. Due to the abolition of subsidies and reduction of budget investments a huge number of unprofitable mines have been closed. Problems with supplies of utilities and sales of coal outside Donetsk region interfere with the smooth manufacturing process. Thus, development of coal mining industry is impeded by lack of market pricing mechanisms and appropriate railway traffic, poorly developed banking and other social, economic and environmental problems. Yet, mining is one of the most significant industries and occupies an important place in the economy of Donetsk region, and is very capable of increasing its production volumes. The authors have analized the research on the problem of management of economic potential development of economic entities of different levels. They introduce the notion of «potential development of coal mining entreprise». The authors have analized the macroenvironment of the region and used it to reveal limitations, threats and opportunities of development of coal industry. They present qualitative analysis of the internal environment of mining enterprises which identifies factors and parameters of their economic potential and suggest the most appropriate method for its assessment and prognosis. They have created a concept of management of economic potential development of a company adapted to the modern conditions and specific character of coal mining enterprises of Donbass.
18
Absori, Absori, Aulia Vivi Yulianingrum, Khudzaifah Dimyati, Harun Harun, Arief Budiono, and Hari Sutra Disemadi. "Environmental Health-Based Post-Coal Mine Policy in East Borneo." Open Access Macedonian Journal of Medical Sciences 9, E (August 20, 2021): 740–44. http://dx.doi.org/10.3889/oamjms.2021.6431.
Full textAbstract:
BACKGROUND: Post-coal mine activities must be carried out by considering good management principles, to avoid negative environmental impacts, especially to avoid land surface imbalance, to avoid destruction of flora and fauna, and more importantly, to maintain the public health. The post-mining regulations based on the priorities of public health and environmental sustainability are designed to increase the human resource quality for the interests of regional development. AIM: This study aims to describe the post-coal mine policy in East Borneo and to formulate the post-coal mine policy as a form of control over ex-mine land from the aspect of environmental health. METHODS: This study uses the qualitative research design. It is a sociolegal type of research with the case study approach toward the currently developing post-coal mine reclamation. This study uses the fishbone analysis. RESULTS: The results of this research show that the supervision toward the ex-mines is still weak. It leads to expanding environmental destruction and some of the companies’ ignorance toward reclamation and post-mining obligations. This condition impacts the water quality, as it is the people’s necessity in fulfilling their basic needs. CONCLUSION: There needs to be a post-coal mine regulation through policies which prioritize environmental sustainability and public health. It includes the optimization of the ex-mine supervision, new regulations as the implementation of the central government’s constitutional regulation, and inspection of environmental health in achieving quality human resources of the region.
19
Stojanović, Goran, and Dejan Bogdanović. "Suppliers ranking in production systems by Fuzzy TOPSIS method, case study: Underground Coal Mines Resavica-Serbia." Podzemni radovi, no. 38 (2021): 27–45. http://dx.doi.org/10.5937/podrad2138027s.
Full textAbstract:
Selection and evaluation of suppliers is a complex issue that depends mostly on the quality of the decision-making process. The aim of this paper is to point to the possibility of applying multi-criteria analysis (Fuzzy TOPSIS method) for the selection of suppliers operating in mining systems in the case of the Public Company for Underground Coal Mining Resavica (JPPEU Resavica) -Serbia. Ranking of companies is done based on ten criteria, and it has considered a list of five suppliers (Supplier 1; Supplier 2; Supplier 3; Supplier 4; Supplier 5). The criteria cover the most important aspects of suppliers' selection such as: management and organization, quality, technical ability, production facilities and capacity, financial position, delivery, service, relationship-connectivity, security and environmental protection and price. In doing so, it has used the experts knowledge from JPPEU Resavica to determine the significance and impact of certain criteria to the process of supplier selection and evaluation of suppliers in regard to each criterion. Fuzzy TOPSIS method was used for determining the final ranking of suppliers. The supplier with the top rank was the Supplier 4. The obtained results indicate that the proposed method gives excellent results and can be used for solving various, and the most complex problems that occur in mining systems, as well as in other production systems.
20
Kozłowska-Woszczycka, Aleksandra, and Katarzyna Pactwa. "Social License for Closure—A Participatory Approach to the Management of the Mine Closure Process." Sustainability 14, no. 11 (May 28, 2022): 6610. http://dx.doi.org/10.3390/su14116610.
Full textAbstract:
The European Union’s climate policy and the assumptions of the European Green Deal require Poland to take decisive transition efforts. The achievement of climate neutrality is a challenge due to the special role of coal in the Polish economy. Closing mines and abandoning coal is the greatest challenge for local communities in mining regions. This article presents the example of Wałbrzych, a Polish post-mining town, which has been experiencing the accumulation of negative consequences of inadequately planned liquidation since the 1990s. The current activities of mining companies in the face of abandoning coal were also analyzed. The gaps identified in the literature indicate the need to define a new method of managing the liquidation processes, based on the consideration of key risks resulting from decommissioning, to minimize the social costs in the first place. In this regard, it is helpful to diagnose the social concerns of the stakeholders. The social aspects of mine closures remain a challenge and finding effective ways to deal with them has become crucial for the industry. This prompted us to propose an approach based on community involvement in the decommissioning processes and the introduction of the social license for closure (SLC). By engaging the community, the SLC gives it a voice, allowing it to accommodate the individual needs of mining regions and ensure a successful and just transition. This article recognizes the key stakeholders and their fears related to the liquidation of mining. The organizational framework for stakeholder approval of the SLC is presented. The analysis was based on the example of Poland, a country facing the challenge of closing hard coal mines. Conclusions formulated on the basis of the case study complement the existing research in the field of social licensing and involving stakeholders in the mine closure planning process in accordance with the idea of corporate social responsibility.
21
Xiao, Lele, Fan Li, Chao Niu, Gelian Dai, Qian Qiao, and Chengsen Lin. "Evaluation of Water Inrush Hazard in Coal Seam Roof Based on the AHP-CRITIC Composite Weighted Method." Energies 16, no. 1 (December 22, 2022): 114. http://dx.doi.org/10.3390/en16010114.
Full textAbstract:
The more complex the hydrogeological conditions of a mine, the more likely the coal seam is to experience water inrush during the mining process, and the greater the degree of the water inrush hazard. The scientific and reasonable prediction of water inrush in mines with complex hydrogeological conditions is of great significance to the safe and efficient operation of coal mines. Taking the roof water inrush problem of the No. 3 lower coal seam in the Jisan Coal Mine as the research object, the factors affecting the roof water inrush of the coal seam were comprehensively considered from three aspects: the aquifer property, the mining fracture development and the geological structure. The evaluation index system was constructed by selecting 10 factors, including the aquifer depth and thickness, core recovery rate, brittle–plastic rock thickness ratio, number of water-resisting layers, development height of the water-conducting fracture zone, fault density, frequency density, scale index and variation coefficient of the coal seam floor dip angle. At the same time, based on the dual influence of subjective and objective weighting, the scientific and reasonable weight of each factor was ensured. The AHP-CRITIC composite weighting method was used to calculate the comprehensive weight of each factor. Finally, the roof water inrush risk prediction model was constructed. According to the prediction results, the study area was divided into a low-risk area, medium-risk area and high-risk area. Compared with the actual situation, the prediction results were basically consistent with the actual situation, and the prediction results can provide the basis for the prevention and control of water in a coal mine.
22
Bhat, Ilyas, Rupali S., and Arvind Kumar. "Evaluation of Shear Strength Parameters in Unreinforced and Shotcrete Reinforced Coal through Experimental and Numerical Methods." Disaster Advances 15, no. 7 (June 25, 2022): 10–17. http://dx.doi.org/10.25303/1507da10017.
Full textAbstract:
The shear strength of coal mines forms the most significant aspect in the evaluation of mining disasters. A series of direct shear strength tests were conducted on intact coal specimens and coal-shotcrete specimens to evaluate the shear strength characteristics of the coal and coal-shotcrete interface. The tests were carried out under 1, 2 and 3 MPa of normal pressure respectively. The peak shear strength in intact coal specimen reaches its maximum value of 3.96 MPa under 3MPa of normally applied pressure while the shotcrete-coal interface has an estimated peak shear strength of 0.73, 0.80 and 0.86 MPa under the normal pressure of 1, 2 and 3 MPa respectively. Mohr-Coulomb model parameters such as adhesion strength and angle of adhesion were further determined that were used for the design and evaluation of shear strength of in situ coal mines. Numerical simulations of coal-shotcrete and intact coal specimens were performed using the Mohr-Coulomb model in Abaqus software and the numerical results obtained were found in good agreement with experimental results exhibiting peak variation of less than 15%. Further, ultrasonic pulse velocity test measurements were performed on coal specimens to evaluate the dynamic shear strength parameters and the parameters obtained were found to be enhanced compared to static strength parameters.
23
Kozlowska-Woszczycka, A. "Degradation of urban space as a negative effect of mine closures." IOP Conference Series: Earth and Environmental Science 942, no. 1 (November 1, 2021): 012028. http://dx.doi.org/10.1088/1755-1315/942/1/012028.
Full textAbstract:
Abstract The article presents one of the social aspects of mine closure, which concerns degraded urban space. One of the post-industrial districts of Waibrzych: Sobiecin was selected as a case study, in which the general condition of the buildings was assessed. The closure of mines is the last stage of mining activity, the result of which should be a permanent minimization of the negative consequences of the impact of the mining industry. The closure of mining enterprises has environmental, social and economic consequences. The liquidation of the Waibrzych coal mines in the 1990s resulted in a rapid de-industrialization of the region and did not provide the means to contain the domino effect it caused. At that time, economic and social changes began in Waibrzych, and unorganized and intense changes took place in the city space. Liquidation processes in the mining industry have led, among others, to the physical and aesthetic degradation of residential buildings and other facilities. The purpose of this article is to assess the general condition of buildings located in an area affected by the negative consequences of mine closures. To achieve this goal, an inventory of the technical condition of the buildings was made. The external elements of the building were assessed by means of a field interview: the facade, door and window joinery and roof covering. The inventory process was supported by drone flights. The collected data was used for graphic and tabular studies, summarizing the condition of buildings and the degree of degradation of urban space.
24
Li, Peixian, Peng Chen, Jiaqi Shen, Weinan Deng, Xinliang Kang, Guorui Wang, and Shoubao Zhou. "Dynamic Monitoring of Desertification in Ningdong Based on Landsat Images and Machine Learning." Sustainability 14, no. 12 (June 18, 2022): 7470. http://dx.doi.org/10.3390/su14127470.
Full textAbstract:
The ecological stability of mining areas in Northwest China has been threatened by desertification for a long time. Remote sensing information combined with machine learning algorithms can effectively monitor and evaluate desertification. However, due to the fact that the geological environment of a mining area is easily affected by factors such as resource exploitation, it is challenging to accurately grasp the development process of desertification in a mining area. In order to better play the role of remote sensing technology and machine learning algorithms in the monitoring of desertification in mining areas, based on Landsat images, we used a variety of machine learning algorithms and feature combinations to monitor desertification in Ningdong coal base. The performance of each monitoring model was evaluated by various performance indexes. Then, the optimal monitoring model was selected to extract the long-time desertification information of the base, and the spatial-temporal characteristics of desertification were discussed in many aspects. Finally, the factors driving desertification change were quantitatively studied. The results showed that random forest with the best feature combination had better recognition performance than other monitoring models. Its accuracy was 87.2%, kappa was 0.825, Macro-F1 was 0.851, and AUC was 0.961. In 2003–2017, desertification land in Ningdong increased first and then slowly improved. In 2021, the desertification situation deteriorated. The driving force analysis showed that human economic activities such as coal mining have become the dominant factor in controlling the change of desert in Ningdong coal base, and the change of rainfall plays an auxiliary role. The study comprehensively analyzed the spatial-temporal characteristics and driving factors of desertification in Ningdong coal base. It can provide a scientific basis for combating desertification and for the construction of green mines.
25
Goncharov, M. S., and D. Yu Savon. "Prospects for development of mining monoprofile municipal entities of the Russian Federation." Russian Journal of Industrial Economics 15, no. 2 (June 8, 2022): 206–13. http://dx.doi.org/10.17073/2072-1633-2022-2-206-213.
Full textAbstract:
The article is devoted to the development of measures for complex support of monoprofile municipal entities. These measures have aimes to improve their socio-economic situation. The topicality of the study is that in many mining monoprofile municipal entities (MME) there are socio-economic problems the solution of which affects the life quality of their 1.26 million residents and the performance of 41 out of 58 mines of the country. The authors used decomposition of city-forming enterprises of MME of the Russian Federation and depending on the type of their economic activity worked out special measures on developing mining MME grouped according to three directions. The article presents the results of analysis of the socio-economic situation in mining MME of the Russian Federation. The analysis was conducted on the basis of the data about the quality indicators of the town environment, the number of residents, average unemployment rate, average number of employees of city-forming enterprises and the number of employees to be dismissed. The authors present the results of financial analysis of the city-forming enterprises involved in underground coal mining. The results of the analysis provided the opportunity to give recommendations on the possible directions for development of mining MME and suggest the measures for improving their socio-economic situation. The measures take into account social, natural-geographical and financial-economic aspects of development of such municipal entities.
26
Pavlysh, V. N., and E. Kazakova. "APPLICATION OF MATHEMATICAL METHODS TO THE SOLUTION OF THE PROBLEM OF DETERMINING THE PROCEDURE FOR CHOOSING ENVIRONMENTAL ACTIONS WHEN CLOSING MINES UNDER THE CONDITIONS OF LIMITED FINANCING." Ecology. Economy. Informatics.System analysis and mathematical modeling of ecological and economic systems 1, no. 5 (2020): 86–91. http://dx.doi.org/10.23885/2500-395x-2020-1-5-86-91.
Full textAbstract:
The methodology for determining the procedure for environmental protection on the basis of a matrix representation of the conditions of the problem and the application of mathematical methods of information processing is substantiated. An algorithm is proposed for establishing the procedure for environmental protection during the closure of coal mines with limited funding. When mines are closed, environmental legislation provides for the implementation of a number of important technical measures ensuring the preservation of the environment in the zone of influence of the enterprise. A method is proposed that is based on determining the degree of risk of each environmental hazard factor, which allows one to “rank” environmental measures according to their “rank”. The main aspects of the negative environmental impact of densely populated mining regions are identified. The degree of environmental risk, from the point of view of using it to establish the frequency of environmental protection measures, is a criterial factor, determined on the basis of collegial decision-making by all interested participants in the process. The numerical characteristics that form the basis for decision making are determined. To assess the degree of environmental risk, the data of expert assessments are presented in the form of a matrix, which allows us to formalize the decision-making process on the frequency of environmental protection measures. In the process of forming a matrix of expert rating estimates, all indicators that determine the degree of environmental risk are taken into account. Moreover, among the indicators there are those that have a physical nature and are measured by physical quantities, and those that have a logical essence and are characterized as “yes” or “no”
27
Pohan, Chairil Anwar. "CADANGAN REKLAMASI PERTAMBANGAN SEBAGAI LOOPHOLES PAJAK DALAM PENERAPAN PRINSIP TAXABILITY-DEDUCTIBILITY." Transparansi Jurnal Ilmiah Ilmu Administrasi 6, no. 2 (March 6, 2018): 181–98. http://dx.doi.org/10.31334/trans.v6i2.41.
Full textAbstract:
Ironic look messy mining face in this country and so much troublesome services of government officials, especially in the mining region of area businesses amid rampant mining minerals (Gold, Tin, Copper, Nickel, etc.) and coal were carried out by the Investor, the resultant investment offers little value added contribution on state revenues, whereas post-exploitation or post-mining closure leaves holes gaping tailings left just by miners, resulting in environmental degradation, social inequality and other things that have a negative impact that brings enormous material losses for the country and society, which never should have happened because of the taxation aspects of the government actually had anticipated that the mining activities should be facilitated by the provisioning cost of reclamation in mining production activities are underway, the reserve for reclamation explicitly accommodated as accounts exclusion in Article 9, paragraph 1 of Income Tax Law, that the taxation treatment is a cost that can be a deduction from gross income.
28
Kulpa, Jarosław, Paweł Kamiński, Kinga Stecuła, Dariusz Prostański, Piotr Matusiak, Daniel Kowol, Michał Kopacz, and Piotr Olczak. "Technical and Economic Aspects of Electric Energy Storage in a Mine Shaft—Budryk Case Study." Energies 14, no. 21 (November 4, 2021): 7337. http://dx.doi.org/10.3390/en14217337.
Full textAbstract:
The transformation of the energy sector towards an increased share of renewable energy sources in the energy mix requires attention in the area of electricity storage. Renewable energy sources (photovoltaics or wind energy) are marked by the intermittency of electricity production and require the construction of energy storage to adapt the energy supply to the demand, providing greater stability. The authors focused on verifying the solution of gravitational energy storage in existing shafts of hard coal mines in Poland. The issue is significant for Poland, as a country with an extensive mining infrastructure, which is searching for new scientific and practical solutions to utilize disused mining shafts for new purposes. In the analysis, the focus was on one shaft located within the Upper Silesian Coal Basin (Górnośląskie Zagłębie Węglowe), maintained for the drainage of the neighboring deposit. The article presents the calculation of energy that can be stored and an analysis of the effectiveness of energy storage in the shaft. The basic assumption of the analysis was 1 cycle of work per day (charging and discharging) in order to use the effect of low prices at night and high prices during peak hours (according to Towarowa Giełda Energii (TGE) quotations). Although energy storage already functions around the world, the studied case is new, because it refers to the usage of existing shafts which makes it a non-investment case. The results of the study showed that the obtained economic effects of the analyzed solution are low, therefore there is no economic justification of activities related to its implementation, taking into account the current price conditions.
29
Klojzy-Karczmarczyk, Beata, Janusz Mazurek, and Krzysztof Paw. "Possibilities of Utilization of Aggregates and Extractive Waste from Hard Coal Mining at Janina Mine in the Process of Reclamation of Open-pit Mines." Gospodarka Surowcami Mineralnymi 32, no. 3 (September 1, 2016): 111–34. http://dx.doi.org/10.1515/gospo-2016-0030.
Full textAbstract:
AbstractIn recent years, the economic importance of gangue mined during coal production has changed and it is currently treated more and more often not as waste but as a source of mineral resources for economic use. The overriding objective throughout the reclamation process of open-pit mines associated with the utilization of external material is to make sure that the placement of waste rock on the surface does not cause damage to the environment. The paper presents results of the diagnosis and evaluation of the possibility of filling open-pit mine workings with mining waste or other materials, for example aggregates produced on the basis of gangue, originating in the Janina Mine mining plant (a subsidiary of TAURON Wydobycie S.A.). The study involved aggregate or coal silts from dewatering on the filter presses. The evaluation refers to the legal aspects and takes the requirements of pollution prevention into account, with a particular emphasis on soil, surface water and groundwater. The analysis of the potential impact on the soil and water environment of the project involving reclamation of the open-pit excavation with the use of minerals or waste from coal mining was carried out based on a study of the total content of sulfur and other elements in the samples pierwiastków (As, Cd, Co, Cr, Cu, Hg, Mo, Ni, Pb, V and Zn), as well as of the leaching of components. Moreover, an examination of the coefficient of permeability and porosity was conducted, which allowed the suitability of the material for the construction of insulating layers to be determined. The physical and chemical analyses were conducted on a total of over a dozen samples of waste rock, a byproduct of the enrichment of coal in the Janina Mine plant. The specific studies of the total sulfur content were conducted for the 16 primary samples scattered into 15 fractions each. Moreover, the so-called secondary samples were created, meaning that fine fractions of less than 20 mm and less than 10 mm were rejected. The total content of the selected components was examined for such crafted samples and their concentrations were determined in the leachable form (batch test 1:10). In the case of use of waste rock as an aggregate for quarry reclamation, a comparative analysis was applied to the legal requirements assigned to the mining waste and the quality of soil and water environment. Based on the conducted studies, it has been concluded that the coal silts (filter cakes) are characterized by good insulating properties and can be used for waterproofing objects, especially in the industrial, communications and mining areas. However, coal silts do not meet the quality requirements, mainly due to their slightly increased chlorides content, in addition to being a waste, which in some cases limits the possibility of their use. The best quality parameters were found for the gangue from the Janina Mine (on the basis of which aggregates are manufactured), but deprived of fine fractions. Physical and chemical analyses of the total content of elements in the secondary samples showed that the obtained values are within the allowable ranges determined by appropriate regulations for the vast majority of samples. The limit of 1% was assumed for the sulfur content. The conducted research on the leaching of pollutants indicates that the tested samples do not introduce contaminants exceeding the limit values for the analyzed metals and sulfates. Only single exceedances of the analyzed parameters are observed. The test results allow to conclude that it is possible to obtain a useful product that meets the requirements of environmental protection, but only after the rejection of fine fractions of the waste material.
30
Kairuz, Eduardo, and Sam Spurr. "CO2 Interiors." idea journal 18, no. 01 (August 31, 2021): 87–112. http://dx.doi.org/10.37113/ij.v18i01.429.
Full textAbstract:
Are there any ulterior narratives that could be mined through a close examination and interpretation of the coal mine interior spaces? CO2 Interiors is a visual essay that addresses this question. And to do so, it unpacks a meticulously curated group of archival images that expose the covert narratives of colonialism and slow violence embedded in coal mining’s (extra)ordinary interiors. This creative exercise entails integrating text into images that include a 19th Century etching of young children pushing coal-filled carriages through steep mine tunnels; and a still from an animated film produced in the 1950s by the National Coal Board Film Unit in Britain. There is an image of human tissue affected by Black Lung Disease; and a photograph of a former Australian Prime Minister enacting the mythology of the alpha male explorer, plunging into the unknown and forbidden depths of the planet. Collectively, these image/text hybrids posit an experimental narrative—an assemblage—that starkly contrasts with contemporary depictions by the mining industry, focused on the technical and quantitative aspects of the activity or greenwashing its multiscalar and devastating effects. This project engages multiple forms of visual representation (historical, spatial, political, and ideological) that have conjured a mythology of coal mining still present today. In doing so, certain refrains echo and multiply, persisting across time frames and political borders to produce a taxonomy of subterranean effects. Integrating text and images, our devices yield a performative reading that seeks to raise awareness and produce affect. As such, CO2 Interiors amplifies our understanding of coal mining beyond its economic and environmental repercussions and well into its social, political, and cultural implications—especially the spatial ones. While the 2019 Australian Federal Election results attest to the embedded mythology of coal mining that is still impossible to restrain, CO2 Interiors dismantles and reassembles it, recasting the false narrative of progress, equity, and solidarity that has been projected from within the coal mine interior space. This curated assemblage of coal stories accumulates as evidence to be critically analysed in order to truly achieve a sustainable post-carbon future.
31
Haidash, Sоfiia, and Viktor Kostenko. "PROBLEMS OF POLLUTION OF MINING ENTERPRISES AND THEIR CLEANING FROM PETROLEUM PRODUCTS." Journal of “Problems of Ecology”, no. 1 (2021): 32–38. http://dx.doi.org/10.31474/2073-8102-2021-1-32-38.
Full textAbstract:
Introduction. In the process of coal mining and beneficiation, a large amount of wastewater is formed at enterprises. Sewage has a variety of origins, which can be classified into: natural (mine, quarry, drainage); technological (water for carrying out technological process, water for cooling of cars and devices); surface (water from rain, snow and maintenance of the enterprise); household (water is formed from showers, bathrooms, dining rooms). Wastewater from mines and factories is highly polluted and can have toxic effects on the environment. Problem Statement. Natural waters have a high rate of mineralization, salts of heavy metals, iron. Waters are polluted with organic matter, large and small particles of coal and rock. Surface and process effluents are contaminated with coal dust and petroleum products. Domestic waters are contaminated with surfactants, fats, animal and plant food residues, alkali, cadmium, nickel. Purpose. The aim is to study in detail the sources of pollution of mine effluents, to determine their composition and properties. Identify the seasonality of sources. Describe the method of water treatment and suggest possible improvements to existing technology. Materials and methods. The water must undergo some purification before it enters the environment. One of the main processes of wastewater treatment is filtration. This process is the most common and effective, so it should be part of the cleaning technology. The filter element can be a thin partition with pores or three-dimensional elements with a porous filler. This paper presents a technology with a granular filter, also called fast. The fast filter works on the principle of volume filtration, impurities are retained in the entire volume of the filter medium, in the pores and on the surface of the grains. Before filtration, the water is treated with coagulants. Types of granular materials: quartz sand, anthracite, expanded clay, expanded polystyrene, ceramic sand, mesoporous coal. Mesoporous coal is a promising material for filtration. Results. In the result of consideration of the composition and properties of wastewater, the appropriate technological scheme of mine wastewater treatment is selected and described. The technology provides purification from large impurities in open hydrocyclones, water treatment with flocculant, provides a filter and clarifier, enhanced purification from petroleum products in the oil trap and carbon filter. Filling the filter is sent to the coal warehouse, which is a cost-effective solution. Conclusions. The effluents of mining enterprises are saturated with pollutants and have a very aggressive composition, so it is unacceptable to release them into the environment without prior lighting. Should attention be paid to the purification of petroleum products that fall into the water as a result of the operation of machines and devices. As one of the possible methods, the technological scheme, improved by the department with oil trap and filter, is presented. Filter backfill is mesoporous coal, which is a very promising sorbent. Water treated with this technology can be used for recirculating water supply. This is justified not only by the economic aspect, but also by the environmental one. Keywords: mine drains, mining, pollution, petroleum products, filtration, technological scheme.
32
Liu, Yu, Jingzhong Zhu, Qimeng Liu, Anying Yuan, Shifang He, and Yisheng Bai. "Mechanism Analysis of Delayed Water Inrush from Karst Collapse Column during Roadway Excavation Based on Seepage Transition Theory: A Case Study in PanEr Coal Mine." Energies 15, no. 14 (July 7, 2022): 4987. http://dx.doi.org/10.3390/en15144987.
Full textAbstract:
Water inrush disaster is one of the major disasters affecting the production safety of coal mines following roof caving, fire, gas outburst, and dust explosion disasters. It is urgent to reveal the water inrush mechanism and take effective measures to prevent the disasters. More than 80% of water inrush accidents occur around geological structural zones such as faults and karst collapse columns (KCCs). The water inrush events from KCCs caused huge economic losses and heavy casualties, and the water inrush process often shows certain hysteresis characteristics. Taking the water inrush disaster from a KCC during roadway excavation in PanEr Coal Mine of Huainan Mining Area as the case study, the delayed inrush mechanism of KCC was analyzed from the aspects of floor failure, KCC activation, seepage transition, and water inrush development characteristics. The results show that the rock mechanical properties and the excavation depth are the main factors affecting the floor failure characteristics. The seepage transformation from pore flow to fracture flow and pipeline flow, with the change in internal composition structure, is the internal mechanism of the delayed water inrush from KCC. The research is of great significance for the prediction and prevention of water inrush disasters from KCCs.
33
Świder, Jerzy, Kamil Szewerda, Krzysztof Herbuś, and Jerzy Jura. "Testing the Impact of Braking Algorithm Parameters on Acceleration and Braking Distance for a Suspended Monorail with Regard to Acceptable Travel Speed in Hard Coal Mines." Energies 14, no. 21 (November 3, 2021): 7275. http://dx.doi.org/10.3390/en14217275.
Full textAbstract:
Increasing the maximum speed limit of suspended monorails, which became a very popular means of auxiliary transport, is one of the aspects of improving the efficiency of work in underground coal mines. It is especially important to enable higher (than allowed by the law) travel speed, when moving the crew to and from the workplace, which is often very distant from the shaft, and can take more than one hour of travel. Increasing this speed will make it possible to extend the effective working time of miners, which should have a positive impact on the economics of the mine. However, driving at a higher speed is also associated with increased risk of a negative impact of dynamic overload to people, e.g., during emergency braking of the suspended monorail. The concept of sequential emergency braking was developed in order to avoid excessive deceleration affecting passengers and the operator of the monorail, as well as to minimize the dynamic loads acting on the rail suspensions and on the roadway support frames, which could cause serious accidents. The developed assumptions with regard to the new method of braking are innovative in the area related to hard coal mining, where there are currently no such solutions. According to the principles of the developed concept, the total braking force was divided into two stages. The activation of the second stage depends on the deceleration measured after the time delay from activation of the first stage of braking. We present the results of the numerical simulations, which aimed to analyze the impact of changing the parameters of the braking algorithm on the braking deceleration, the braking time, and the braking distance. The possibility of changing the braking force and downward emergency braking on a high inclination angle were also taken into account during the numerical simulations. Use of the developed emergency braking algorithm enables the optimization of this process at a higher speed than is currently used. This aspect is also very important in increasing the safety for people travelling at a higher speed limit. The numerical simulations provide knowledge for safety in terms of the dynamic overload during emergency braking, without injury risk to miners or damage to equipment.
34
Taverne, B. G. "The concession Groningen: A lawyer’s view." Netherlands Journal of Geosciences - Geologie en Mijnbouw 80, no. 1 (April 2001): 113–19. http://dx.doi.org/10.1017/s0016774600022228.
Full textAbstract:
AbstractThe discovery in 1959 of natural gas in a well drilled by the Nederlandse Aardolie Maatschappij (NAM) near Hoogezand, Gemeente Slochteren, a town in the Province of Groningen, led to the development and establishment of major natural gas production in the Netherlands. This important industrial development could not have started and the necessary investments would not have been made by the industry, if not in accordance with the then applicable Napoleonic Mining Law of 1810 a concession had been applied for and granted allowing to exploit this discovery. From this point of view, admittedly a lawyer’s view, the award of the concession, which was named Groningen, should be considered to be the actual starting point for the aforesaid development.On 1 July 1961 NAM submitted its application for a concession based on its Slochteren discovery and with this submission the negotiations started between the Netherlands government on the one side and NAM and its two shareholders, viz. Shell and Exxon, on the other side, on the terms and conditions to be incorporated in the applied for concession. On the government’s side attention was focused on two aspects: how to integrate the natural gas discovered into the economy of the country and how to involve the State in the production and disposal thereof. From the outset the government intended, that the State’s interests should be represented by the Staatsmijnen in Limburg (State Mines) in order to give this coal mining enterprise a future outside and independent from its ailing coal mining business in the Province of Limburg. To this end the government arranged for State Mines to enter into a maatschap (partnership) with NAM. In this partnership State Mines would get a 40% participating interest, leaving 60% for NAM. The concession would be granted to NAM, but the latter would be obliged to produce the natural gas reserves contained within the concession for the account and responsibility of the partnership. The partnership would be managed by State Mines with a 50% voting right and by NAM’s two shareholders each with a 25% voting right.In the deed of concession, which was granted on 30 May 1963, it is stipulated, that any natural gas not needed by the concessionaire for its own operations should be sold to a corporation to be designated by the Minister and the articles of association of which would require the latter’s approval. This corporation, named the NV Nederlandse Gasunie (the Gasunie), was established on 6 April 1963. Its shareholders were (and still are) State Mines (now Energie Beheer Nederland (EBN)) with a 40% shareholding interest, the two shareholders of NAM, each with a 25% interest, and the State itself with a 10% interest. The Gasunie is allowed to realise from its business of buying, transporting and selling natural gas an after tax profit of NGL 80 million per year. Any surplus revenues are transferred to NAM (the transfer sum) in payment of the gas delivered by NAM.The concession area comprises about 2,970 square km, covering the territory of the Province of Groningen and the territorial waters adjacent to the Province. The concession area includes part of the Waddenzee, an area in respect of which special environmental/zoning rules and regulations are in force. As a matter of fact any exploitation of the gas reserves situated in that area is ruled out, at least for the foreseeable future.The concession area also includes an area described as the Common Area in the Supplementary Eems I Dollard Agreement of 14 May 1962. Under the terms of this Agreement natural gas produced from the gas reserves situated in the Common Area had to be shared with German concessionaires. NAM was appointed the operator for implementing the provisions of the Agreement.A certain varying amount of subsidence is experienced throughout the concession area. In this matter the partnership agreed to compensate, up to a certain financial limit, third parties which incurred costs or suffered damage in connection with said subsidence.
35
Filimonov, Egor S., Olga Yu Korotenko, Evgeniya V. Ulanova, and Natalia V. Tapeshkina. "Risk factors in the development of cardiovascular diseases in the coal industry workers." Hygiene and sanitation 101, no. 7 (July 31, 2022): 770–75. http://dx.doi.org/10.47470/0016-9900-2022-101-7-770-775.
Full textAbstract:
Introduction. Obesity and cardiovascular diseases are closely related and have a high prevalence in the global population. Workers of coal mining enterprises have an increased risk of developing these pathological conditions due to working conditions and employment schedules. Social and household factors and an unhealthy lifestyle can have a negative impact on metabolic processes that lead to obesity. In this regard, the search for risk factors for these diseases and the elaboration of a prevention system based on them to preserve the health of working groups of the population are relevant. Materials and methods. The study involved three hundred eighty-five workers of coal enterprises in the South of Kuzbass including 244 miners and 141 coal pit workers. The mean age was 46.35±0.34 and 46.98±0.36 years, respectively, p=0.231. The social and household aspects and lifestyle of the workers were revealed by the questionnaire method. Ultrasound investigation of vessels was performed on the General Electric Vivid E9 system. Results. The prevalence of atherosclerosis in obese workers employed in coal pits was higher than in persons with normal weight: 58.8% vs. 40.0%, p=0.035; no such pattern was found among miners. In coal pit workers with arterial hypertension, abdominal obesity was detected in 90.9% of the cases and in 67.0% (p=0.0004) in underground miners. The studied social and household factors, except for hypodynamia, had no a significant impact on the development of obesity. Limitations. The investigation did not include individuals with proven familial hypercholesterolemia, inflammatory vascular diseases and diabetes mellitus. Conclusion. Constitutional obesity increased the atherosclerosis risk in coal pit workers and did not affect on its prevalence in underground miners. Abdominal obesity did not contribute to an increase in the prevalence of atherosclerosis among the examined subjects, but increased the risk of arterial hypertension. Among the studied social and household factors, a significant role in the development of constitutional obesity in coal pit workers is rendered by hypodynamia during non-working hours.
36
Sutrisno, Endang, Ayih Sutarih, and Ibnu Artadi. "IMPLIKASI USAHA PENAMBANG GALIAN C TERHADAP DEGRADASI KUALITAS MUTU LINGKUNGAN HIDUP SUNGAI (Studi Kasus Kecamatan Palasah Kabupaten Majalengka)." Jurnal Hukum Bisnis Bonum Commune 3, no. 1 (January 24, 2020): 1–10. http://dx.doi.org/10.30996/jhbbc.v3i1.2685.
Full textAbstract:
Quarrying C Mining Activities, which are carried out by residents in the river area in Majalengka Regency, are mining sand individually or in groups in the form of traditional micro and medium enterprises. The existence of the business is carried out with various limitations namely minimal technology, the existence of limited human resources, small capital aspects and activities carried out by ignoring the licensing factor by referring to Law Number 4 of 2009 concerning Mineral and Coal Mining. Traditional miners must have a People's Mining License (IPR) granted by the local Regional Government. The fact is that the mining activities are carried out without a permit and public policies are needed from the continuous support of the local government to maintain the environmental quality of the river basin. The formulation of the problem is how is the implementation of Majalengka District Government's policy to maintain the quality of the river's environmental quality? And how is the legal understanding of traditional illegal miners in the District of Palasah Majalengka Regency to build awareness and legal compliance? This study uses the hermeneutic paradigm with the aim of understanding the interaction of actors who are involved or involved themselves in a social process, including social processes that are relevant to legal issues. The so-called actors in this research are the traditional illegal miners in Palasah Sub-District, Majalengka Regency. The legal basis for local community control of sand mining activities carried out naturally and is handed down for more than 50 (fifty) years. However, the legal basis for the control is not enough, in this case the people conducting sand mining must have a People's Mining License (IPR) granted by the local government as regulated in Article 1 paragraph (10) of Law No. 4 of 2009 concerning Mineral and Coal Mining.Kegiatan Penambangan Galian C, yang dilakukan oleh penduduk di kawasan sungai di Kabupaten Majalengka yaitu penambangan pasir secara perorangan atau berkelompok dalam bentuk usaha kecil mikro dan menengah secara tradisional. Eksistensi usaha tersebut dilakukan dengan berbagai keterbatasan yaitu minim teknologi, keberadaan sumber daya manusia yang terbatas, aspek permodalan kecil serta kegiatan yang dilakukan dengan mengabaikan faktor perizinan dengan merujuk kepada Undang-Undang Nomor 4 Tahun 2009 tentang Pertambangan Mineral dan Batu Bara. Penambang tradisioanl harus mempunyai Izin Pertambangan Rakyat (IPR) yang diberikan oleh Pemerintah Daerah setempat. Faktanya aktivitas penambangan tersebut, dilakukan tanpa adanya izin dan dibutuhkan kebijakan publik dari keberpihakan Pemerintah Daerah setempat secara berkesinambungan untuk menjaga kualitas lingkungan hidup kawasan sungai. Rumusan masalahnya bagaimanakah implementasi kebijakan Pemerintah Daerah Kabupaten Majalengka untuk menjaga kualitas mutu lingkungan hidup sungai? Dan bagaimanakah pemahaman hukum penambang liar tradisional di Kecamatan Palasah Kabupaten Majalengka untuk membangun kesadaran dan kepatuhan hukum? Penelitian ini menggunakan paradigma hermeneutika dengan tujuan untuk memahami interaksi para aktor yang tengah terlibat atau melibatkan diri ke dalam suatu proses sosial, termasuk proses-proses sosial yang relevan dengan permasalahan hukum. Yang disebut aktor dalam penelitian ini adalah para penambang liar tradisional yang ada di Kecamatan Palasah Kabupaten Majalengka. Dasar hukum penguasaan oleh masyarakat lokal atas kegiatan penambangan pasir yang dilakukan yang terjadi secara alamiah dan turun temurun selama 50 (lima puluh) tahun lebih. Akan tetapi, dasar hukum penguasaan tersebut tidaklah cukup, dalam hal ini masyarakat yang melakukan penambangan pasir harus mempunyai Izin Pertambangan Rakyat (IPR) yang diberikan oleh Pemerintah Daerah setempat sebagaimana yang diatur dalam Pasal 1 ayat (10) Undang-Undang No. 4 Tahun 2009 tentang Pertambangan Mineral dan Batu Bara
37
Zhukova, Anna G., Natalya V. Kizichenko, Larisa G. Gorokhova, and Anastasiya S. Kazitskaya. "Experimental models of vibration disease (literature review)." Hygiene and sanitation 101, no. 7 (July 31, 2022): 776–82. http://dx.doi.org/10.47470/0016-9900-2022-101-7-776-782.
Full textAbstract:
Introduction. Long-term vibration exposure to the human body is a risk factor for the development of occupational diseases and comorbid conditions causing, first of all, the pathology of the nervous system, as well as the cardiovascular, gastrointestinal tract and musculoskeletal systems. Pathogenetic aspects of vibration exposure at the molecular level remain open and require the search for adequate experimental animal models. The review describes experimental methods for studying vibration disease. A literature search was conducted in the databases MedLine, PubMed, Web of Science, Scopus, Google Scholar, CyberLeninka and RSCI. The results of experimental studies differ due to the difference in frequencies and duration of vibration exposure. Sanitary and hygienic characteristics of workplaces of coal-mining enterprises in Kuzbass. Data are given at the levels of local and whole-body vibration at the workplaces of an underground sinker, a stope miner, and a mining machine operator. Experimental modelling of local and whole-body vibration. Experimental methods of vibration exposure to laboratory rats, mice and rabbits at the local and whole-body levels are described. The presented experimental models are as close as possible to real vibration effects in production conditions. Vibration at frequencies above 4 Hz has been shown to cause changes in the structure and functions of peripheral vessels and nerves, along with hypoxic damage of the brain, heart, kidneys, liver, and skeletal muscles. Conclusion. Experimental modelling of vibration disease makes it possible to study the organ-specific molecular mechanisms of damaging vibration exposure to the body and develop effective preventive and therapeutic measures.
38
Гнатюк, Лілія Романівна, and Марія Ігорівна Білоног. "Благоустрій вугільних кар’єрів." Theory and practice of design, no. 24 (December 22, 2021): 133–41. http://dx.doi.org/10.18372/2415-8151.24.16300.
Full textAbstract:
Мета: Полягає у дослідженні проблеми ландшафтної рекультивації відпрацьованих територій вугільної промисловості України та пропозиціями варіантів їх вирішення. Окрім цього, дослідити екологічний вплив покинутих кар’єрів та з’ясувати способи його мінімізації та запропонувати шляхи трасформації колишніх місць видобутку покладів на культурні та громадські місця. Результати. Виявлено, що сьогодні в країні 65 міст, основною роботою в яких залишається шахта. Для вирішення проблем, що потенційно виникають після закриття шахти, пропонується влаштовувати на місцях колишніх шахт громадські ландшафтні парки, які згодом перетворювалися б на соціокульнурні осередки. До цих міст може бути застосована концепція «Зелена інфраструктура» (GI), щоб подолати розрив між традиційним землекористуванням та забудовою міст, з одного боку, та сталим міським розвитком, з іншого. Проаналізовано досвід інших країн, а зокрема Німеччини, Польщі, Великої Британії. Досліджено специфіку зонування та озеленення таких територій.Наукова новизна. Полягає у пропозиціях трансформації сьогодні закинутих місць в різноманітні громадські ландшафтні парки. Практична значущість. В часи, коли багато країн відмовляються від видобування і закривають шахти, важливо дати можливість працевлаштуванням людям, для яких це було основним видом доходу та подумати про майбутнє місць, зруйнованих внаслідок цієї галузі промисловості. Окрім цього, це вирішує проблему дефіциту вільних від забудови та незайнятих під сільське господарство природних ландшафтів поблизу великих міст, великим поширенням порушених територій. Вивчення результатів впливу технологізації промислового виробництва сучасного індустріального міста потребує креативних пропозицій на ринку туристичних послуг України щодо ознайомлення туристів з унікальними об’єктами промислових дестинацій. The goal is to study the problem of the coal industry in Ukraine and proposals for solutions. In addition, investigate the ecological impact of abandoned quarries and find out ways to minimize it and propose ways to transform the former mining sites into cultural and public places. Results. It has been established that today there are 65 cities in the country, in which the main work remains the mine. To solve this problem, it is proposed to establish public landscape parks on the sites of former mines, which would then turn into socio-culinary centers. The experience of other countries, in particular Germany, Poland, Great Britain, is analyzed. The specificity of zoning and landscaping of such territories has been investigated. At a time when many countries are abandoning mining and closing mines, it is important to give employment opportunities to people for whom this was their main source of income and to think about the future of the places destroyed by this industry. In addition, this solves the problem of a shortage of natural landscapes free from buildings and unoccupied for agriculture near large cities, a large spread of disturbed territories. The study of the impact of technologization of industrial production of a modern industrial city requires creative proposals on the tourist services market of Ukraine to familiarize tourists with the unique objects of industrial destinations. This article focuses on human activities that have greatly influenced our environment. This paper discusses the mining industry, which reflects the activities that have caused and continue to cause change on earth. It has been investigated that, after operation, it is important to turn these industrial and abandoned sites into places of architectural and environmental value.Quarries can be transformed into large public parks, botanical gardens, natural areas of significant environmental value, auditoriums, tourist buildings, infrastructure, shopping malls, cemeteries and many other recreation areas. In addition to giving new life to «dead» territory, this aspect affects the economics of quarry location and land consumption policy.
39
Zhang, Wei, Jiawei Guo, Kaidi Xie, Jinming Wang, Liang Chen, Wenmin Hu, and Jiaxing Xu. "Comprehensive technical support for safe mining in ultra-close coal seams: A case study." Energy Exploration & Exploitation 39, no. 4 (April 14, 2021): 1195–214. http://dx.doi.org/10.1177/01445987211009390.
Full textAbstract:
In order to mine the coal seam under super-thick hard roof, improve the utilization rate of resources and prolong the remaining service life of the mine, a case study of the Gaozhuang Coal Mine in the Zaozhuang Mining Area has been performed in this paper. Based on the specific mining geological conditions of ultra-close coal seams (#3up and #3low coal seams), their joint systematic analysis has been performed, with the focus made in the following three aspects: (i) prevention of rock burst under super-thick hard roof, (ii) deformation control of surrounding rock of roadways in the lower coal seam, and (iii) fire prevention in the goaf of working face. Given the strong bursting tendency observed in upper coal seam and lower coal seam, the technology of preventing rock burst under super-thick hard roof was proposed, which involved setting of narrow section coal pillars to protect roadways and interleaving layout of working faces. The specific supporting scheme of surrounding rock of roadways in the #3low1101 working face was determined, and the grouting reinforcement method of local fractured zones through Marithan was further proposed, to ensure the deformation control of surrounding rock of roadways in lower coal seams. The proposed fire prevention technology envisaged goaf grouting and spraying to plug leaks, which reduced the hazard of spontaneous combustion of residual coals in mined ultra-close coal seams. The technical and economic improvements with a direct economic benefit of 5.55 million yuan were achieved by the application of the proposed comprehensive technical support. The research results obtained provide a theoretical guidance and technical support of safe mining strategies of close coal seams in other mining areas.
40
Nomani, M. Z. M., Ali Reja Osmani, Ghazal Salahuddin, Madiha Tahreem, Saif A. Khan, and Alaa Hussein Jasim. "Environmental Impact of Rat-Hole Coal Mines on the Biodiversity of Meghalaya, India." Asian Journal of Water, Environment and Pollution 18, no. 1 (January 25, 2021): 77–84. http://dx.doi.org/10.3233/ajw210010.
Full textAbstract:
The paper appreciates coal mining laws and policies applied by National Green Tribunal to ban traditional, artisanal and rat-hole coal mining in Jaintia Hills of Meghalaya (a state in India) in an attempt to conserve its environment and biodiversity. Meghalaya represents an important part of the Indo-Burma biodiversity hotspot which is one of the four bio-diversity hotspots of India and ranks 34th among the hotspots in the world. It is equally bestowed with rich deposits of coal, which can be found in the Khasi Hills, Garo Hills and Jaintia Hills districts. Coal mining from these districts is labour-intensive and involves digging narrow rat-hole sized tunnels that are four-feet high. The workers enter into the rat-hole in an extremely hazardous manner, setting aside the ergonomic principles for the extraction of coal. The legal framework of coal mining is governed by Mines Act, 1952, Mines and Minerals (Development and Regulation) Act, 1957, Mineral Concession Rules, 1960, Coal Mines (Nationalization) Act, 1973, Mineral Conservation and Development Rules, 1988 and Mines and Minerals (Development and Regulation) Amendment Act, 2015. However, these laws are not applied to Meghalaya because of its constitutional status enshrined in Sixth Schedule and Article 244 of the Constitution of India, 1950. Coal mining has brought employment opportunities, tribal sustenance and economic development that led to environmental degradation, disruption of ecosystems and biological diversity. The hazardous pursuits have been bereft of safety and ergonomic principle besides being oblivious of SDF of mining laws and policies in India.
41
Ianc, Nicolae, Corneliu Boantă, Ion Gherghe, and Cristian Tomescu. "Environmental impact of methane released from coal mines." MATEC Web of Conferences 305 (2020): 00030. http://dx.doi.org/10.1051/matecconf/202030500030.
Full textAbstract:
Methane gas accompanying coal deposits was formed as a result of successive stages of the anaerobic process of vegetal material transformation into coal, at high temperatures and pressures, without external oxygen supply. During the metamorphism process, the content of C, H and O is modified, meaning an increase in carbon content, a decrease in hydrogen and oxygen, the nitrogen and sulphur content remaining constant. During this process, water and carbon dioxide is generated, the water being generated in the first transformation phases. Within the slow oxidation process, gas products result by using the oxygen content in plants, especially methane and carbon dioxide due to the fermentation stimulated by bacteria. Methane released into the atmosphere following the mining of coal have double ecological impact, participating in the destruction of the ozone layer and at the same time contributing to the enhancement of the greenhouse effect. At the same time, methane gas released into the atmosphere during coal mining may be used by mining operators as primary power resource for covering the power requirements of the mine or it can be used for commercial purposes.
42
Xiao, Jin. "A Region of Coal Mine Geological Environmental Survey Assessment and Prevention Countermeasures." Advanced Materials Research 726-731 (August 2013): 1078–84. http://dx.doi.org/10.4028/www.scientific.net/amr.726-731.1078.
Full textAbstract:
Exploitation and utilization of coal resources will cause disturbances to the geologic environment and damages to the geologic environment conditions of the mining area, and lead to damages to ecological environment, formation of geologic hazards of mines and environmental pollution in the mining area. In this paper, current geologic environment of mines is investigated, and geologic environment problems of mines are assessed and prevention and control measures are researched on a basis of classified areas, with Dazhou, which is an important city in East Sichuan and where coal resources are rich and exploited frequently, as an example, to provide reference for protection, treatment and recovery of geologic environment of coal mines in East Sichuan.
43
Irimie, Sabina, and Gloria Popescu. "Regional socio-economic aspects in the field of coal mining." MATEC Web of Conferences 305 (2020): 00060. http://dx.doi.org/10.1051/matecconf/202030500060.
Full textAbstract:
Over time, the discovery of the deposit, the exploitation and processing of coal has led to the development and prosperity of many areas called “coal regions”. In the last decades we have witnessed the closing process of many exploitation capacities (underground mines or open pit quarries) with complex socio-economic and even cultural impact in the coal region and on the continent. Debates for or against “coal” with related arguments, policies, strategies and measures at global, regional, national and local level integrate holistically from the “resource” issue to large dynamic systems (energy, climate, urbanism). The relationship between the coal industry and the socio-economic aspects is multifaceted and not yet fully explored. Our paper proposes a statistically documented research on regional development using representative socio-economic indicators. The paper is aiming to present the current socio-economic state in Jiu Valley micro-region, as a result of the structural transformations / changes in the coal industry of Romania’s largest hard coal-fired coal basin.
44
Chang, Qingliang, Jianhang Chen, Huaqiang Zhou, and Jianbiao Bai. "Implementation of Paste Backfill Mining Technology in Chinese Coal Mines." Scientific World Journal 2014 (2014): 1–8. http://dx.doi.org/10.1155/2014/821025.
Full textAbstract:
Implementation of clean mining technology at coal mines is crucial to protect the environment and maintain balance among energy resources, consumption, and ecology. After reviewing present coal clean mining technology, we introduce the technology principles and technological process of paste backfill mining in coal mines and discuss the components and features of backfill materials, the constitution of the backfill system, and the backfill process. Specific implementation of this technology and its application are analyzed for paste backfill mining in Daizhuang Coal Mine; a practical implementation shows that paste backfill mining can improve the safety and excavation rate of coal mining, which can effectively resolve surface subsidence problems caused by underground mining activities, by utilizing solid waste such as coal gangues as a resource. Therefore, paste backfill mining is an effective clean coal mining technology, which has widespread application.
45
Mocek, Piotr. "Research on the Environmental Impact of Industrial Noise Emitted By Mine and Mining Plants." Management Systems in Production Engineering 30, no. 2 (May 19, 2022): 146–55. http://dx.doi.org/10.2478/mspe-2022-0018.
Full textAbstract:
Abstract The article presents the results of measurements of environmental noise accompanying the operation of devices operated in surface facilities of hard coal mines and noise generated in technological processes related to the loading and transport of spoil and materials necessary for production. The research results presented in the article are part of the program of “Consequences of excessive noise in the mining environment of hard coal mines”, the overarching goal of which is to reduce the emission of industrial noise. The research described in the article, carried out using the sampling method, was introduced in order to determine the actual values of noise levels emitted to the external environment from mines and mining plants, as well as to identify the acoustic power levels of devices and processes constituting the main sources of noise in mines. The obtained results showed that mines and mining plants are often not fully aware of the scale of the environmental impact of undesirable noise they emit. Therefore, the current periodic measurements of environmental noise should be replaced with permanent monitoring, which will be beneficial not only for the environment, residents of housing estates located near mines, but also for the mining plants themselves.
46
Boichenko, M. "Renovation of closed coal mines." Economic Herald of the Donbas, no. 3 (65) (2021): 75–80. http://dx.doi.org/10.12958/1817-3772-2021-3(65)-75-80.
Full textAbstract:
The purpose of this paper is to show that a change of situation in the world market and mineral resources’ depletion lead to closing of numerous mining companies. There is an urgent necessity to establish environment safety and recover economic value of disturbed soils for their further use. The paper provides cases of successful revitalization of areas, including industrial areas, where the landscape or family entertainment parks were created. There are priority grounds for public amenity projects implemented in industrial zones as a part of quality of environment upgrade in industry-based towns. Given the fact that Ukraine opens a competition for new jobs and economy development in mining regions, the paper presents information proving that closed coalmines require renovation projects feasible to change the situation significantly, making these regions worth of investments. The paper outlines differences between the industrial and technology parks. In particular, there are advantages and gains of industrial parks, current theoretical suggestions for their creation in closed coalmines areas, the case of practical implementation of an industrial park prototype in operating mines and present problems of industrial parks creation and operation. The number of industrial parks in Ukraine is one of the fewest in the world. For late 2020, Ukraine registered only 45 industrial parks and only 23 of them had managing companies. The paper gives the grounds that to create industrial parks of Brownfield type is the most efficient solution for closed coalmines areas recovery.
47
Tkach, Sergye, Natalya Batugina, and Vladimir Gavrilov. "Technological, economic and social aspects of the provision of solid fuels to the Arctic regions of Yakutia." E3S Web of Conferences 192 (2020): 03001. http://dx.doi.org/10.1051/e3sconf/202019203001.
Full textAbstract:
The article examines the reasons leading to the increase in the price of fuel and energy resources consumed in the Arctic regions of the Yakutia. The paper studies the conditions for the development of coal deposits in the region. It is shown the lack of open cast mines that meet modern criteria for efficient use of small-scale open mining by quality and logistic accessibility. This article determines that with the minimum level of clogging of the hard coal mined and the stabilization of its quality over time, it is possible to efficiently recycle the fuel without other precombustion measures. In the case of development of brown coal deposits, additional enrichment is required after extraction to improve the level of consumables. The paper stresses that development of local small-scale deposits of coal is important direction to improve energetic safety of arctic regions. It is necessary to select the coal mines most suitable for open-cast mining, as close to consumers and also with the best quality indicators. The use of the specified measures of technological and economic management, administrative regulation and improvement of mechanisms of «northern delivery» make it possible to facilitate the creation and operation of new coal mines in the Arctic zone of Yakutia. In turn, this reduce coal delivery periods, its quantity and quality losses in the supply chain, and improve local fuel and energy complexes.
48
Zhang, Bao Ding, and Bai Shun Su. "Design of Position System of Underground Mines Based on Zigbee Technology." Applied Mechanics and Materials 340 (July 2013): 691–95. http://dx.doi.org/10.4028/www.scientific.net/amm.340.691.
Full textAbstract:
Safety problem has been one of the major issues in coal mining process. Therefore, a perfect mine safety monitoring system is necessary. It is one of the important aspects of a safety monitoring system how to acquire the exact position information real-timely of staff underground coal mines. To solve the problem of how to acquire of miners position, based on coal mine structure characteristics, with Zigbee technology, a kind of position system of underground coal mines is designed in the paper, and the efficiency of mine safety monitoring system can be improved greatly.
49
Gao, Junlian, Chenghe Guan, Bo Zhang, and Ke Li. "Decreasing methane emissions from China’s coal mining with rebounded coal production." Environmental Research Letters 16, no. 12 (November 30, 2021): 124037. http://dx.doi.org/10.1088/1748-9326/ac38d8.
Full textAbstract:
Abstract China is the world’s largest anthropogenic methane (CH4) emitter, with coal mine methane (CMM) as one of the main contributors. However, previous studies have not reach consensus on the magnitude and trend of China’s CMM emissions since 2010. Through distribution fitting and Monte Carlo methods, dynamic emission factors (EFs) of CMM at the province-level were derived with high confidence; along with the updated data on surface mining, abandoned coal mines, and methane utilization, we revealed that China’s annual CMM emissions were estimated at 20.11 Tg between 2010 and 2019 with a decline of 0.93 Tg yr−1. Although coal production was revived in 2017, we found that the growing trend of China’s CMM emissions since 2012 were curbed by the previously-overlooked factors including the growth of CMM utilization and coal production from surface mining, and decrease of EFs driven by the closure of high CH4-content coal mines and a regional production shift to lower-emission areas.
50
Zhironkin, Vitaly, and Juraj Janocko. "Revitalization of Coal Brownfields in Solving Environmental Problems and Structural Development of Kuzbass Economy." E3S Web of Conferences 134 (2019): 02002. http://dx.doi.org/10.1051/e3sconf/201913402002.
Full textAbstract:
The life cycle of mines lasts from several years to several decades. The closure of the mine occurs when its recourses are completely extracted, or mining is no longer profitable within its leasehold. Most regulatory authorities all around the world require the plan of mines and open-pits closure even before the mining begins, as it must be determined that the site would not pose a threat to the environment or society in future. Depending on the location, the site of mine or open-pit may be used in alternative way after closure or restored to the pre-operational condition. Local authorities increasingly require financial assurance that the funds needed to close mining enterprises will also be available in emergency situations. Special attention is paid to the environmental insurance intended to limit liability related to pollution elimination after mining activities at abandoned fields are over. In close connection with environmental insurance is post-mining – the development of alternative use of mining sites after the closure of mines and open-pits.