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Статті в журналах з теми "Coal dump"

Автор: Grafiati

Опубліковано: 3 червня 2025

Оновлено: 31 липня 2025

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1

Batugin, Andrian, Aleksandr Kobylkin, and Valerija Musina. "Investigation of the influence of the geodynamic position of coal-bearing dumps on their endogenous fire hazard." Записки Горного института 250 (September 29, 2021): 526–33. http://dx.doi.org/10.31897/pmi.2021.4.5.

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The paper investigates the hypothesis according to which one of the factors influencing the spontaneous combustion of coal-bearing dumps is its geodynamic position, i.e. its location in the geodynamically dangerous zone (GDZ) at the boundary of the Earth crust blocks. This hypothesis is put forward on the basis of scientific ideas about the block structure of the Earth crust and the available statistical data on the location of burning dumps and is studied using computer modeling. A dump located in the area of Eastern Donbass was chosen as the object of research. The simulation results show th

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2

Davidenko, N., O. Anisimov, P. Saik, and M. Demydov. "On the technology of waste rock dump development in coal mines." Collection of Research Papers of the National Mining University 79 (December 30, 2024): 15–25. https://doi.org/10.33271/crpnmu/79.015.

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Purpose. Analysis, systematization, and visualization of technological schemes for developing waste rock dumps in coal mines, considering the types and specifications of mining equipment. Methodology. To achieve the stated objective, a comprehensive approach was applied, which included summarizing the current state of waste rock dump formation and existing methods for their development. The visualization of technological schemes for developing coal mine waste rock dumps, considering mechanization complexes, involved using the AutoCAD software, enabling the geometrization of dump development pa

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3

Gupta, Anup, and Biswajit Paul. "Augmenting the Stability of OB Dump by Using Fly Ash: A Geo Technical Approach to Sustainably Manage OB Dump at Jharia Coalfield, India." Current World Environment 11, no. 1 (2016): 204–11. http://dx.doi.org/10.12944/cwe.11.1.25.

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This paper is mainly focused over the possible utilization of fly ash along with OB dump to enhance the stability of OB dump and thus provide a sustainable approach for better waste management of both these materials simultaneously. Instability of coal mine overburden (OB) dumps is an important problem in most of the coal mines like Jharia coalfields in India. This is mainly occurring due to sliding nature of the rock material, lack of vegetation etc. Numbers of Environmental and health issues are associated with these unstable OB dumps. As it may easily flow with running water can contaminate

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4

Tong, Jiamin, Yongbo Zhang, Na Zhao, Aijing Wu, Feifei Shi, and Junxing Chen. "Study on the Temperature Field Change Characteristics of Coal Gangue Dumps under the Influence of Ambient Temperature in Heat Pipe Treatment." Sustainability 15, no. 20 (2023): 15182. http://dx.doi.org/10.3390/su152015182.

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In order to investigate the influence of ambient temperature on the temperature field of coal gangue dumps governed by heat pipes (HPs), using self-developed heat pipe and intelligent cloud monitoring software, a 1-year field test was conducted in the spontaneous combustion coal gangue dump of Danao liang. This study analyzed the temperature distribution changes of a spontaneous combustion coal gangue dump under different ambient temperatures, as well as the temperature changes of the coal gangue at different time scales. Correlation analysis between ambient temperature and coal gangue tempera

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5

Filimonova, E. I., N. V. Lukina, and М. А. Glazyrina. "Platanthera bifolia (L.) Rich. on industrial dumps in the Middle Urals." Проблемы ботаники южной сибири и монголии 19, no. 2 (2020): 215–20. http://dx.doi.org/10.14258/pbssm.2020106.

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We studied cenopopulations of Platanthera bifolia on industrial dumps in the Middle Urals (the southerndump of the Veselovsky brown coal deposit, the ash dump of the Verkhnetagil State District Power Plant). The spatial,age, morphological structure and features of mycorrhiza formation of this species on disturbed lands were studied. Thecenopopulations of P. bifolia growing on industrial dumps of the Veselovsky brown coal deposit, VSDPP ash dump andin the natural forest phytocenosis of the forest park are normal, incomplete, with a predominant generative state in theage spectrum. It was reveale

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6

Kolpakova, D. E., I. S. Milentieva, L. K. Asyakina, N. V. Fotina, and A. Yu Prosekov. "Features of the mineralogical composition of technogenic soils of coal dumps in Kuzbass, Kemerovo Region, Russia." South of Russia: ecology, development 19, no. 2 (2024): 92–103. http://dx.doi.org/10.18470/1992-1098-2024-2-9.

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Study of the mineralogical composition of soils in coal dumps formed in sectors of the Kemerovo region for further remediation of posttechnogenic landscapes.Samples of technogenically disturbed soils of the Mokhov, Korchakol and Barzas dumps located on the territory of the Kemerovo region were studied. The results were obtained using X‐ray diffraction analysis.The chemical composition of the soils of the Mokhovsky, Barzassky and Korchakolsky coal dumps have been determined. Chromium pyrophosphate (Cr2O7Р2), aluminium sulfphide (Al2S3) and zirconium silicide (ZrSi) prevail in the samples of the

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7

Kolmogorova, E. "Estimation of the Content of Nitrogen and Phosphorus in the Scots Pine Needles, Growing Under Various Edaphic Conditions of the Coal Dump." Bulletin of Science and Practice 5, no. 10 (2019): 56–59. https://doi.org/10.33619/2414-2948/47/07.

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The paper presents research data on the nitrogen and phosphorus content in the Scots pine needles, which grows under various edaphic conditions of the dump of the Kedrovsky coal pit, located 25 km north of Kemerovo. The objects of the study were Scots pine trees 10–15 and 20–25 years old. The observation sites were laid on the planned dump with the application of a potentially fertile layer — PFL, in the inter-dump cavity and on the planned dump without applying the PFL. The studies were conducted according to generally accepted methods. The aim of the study wa

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8

Pudari, Harish, and Ram Chandar Karra. "Geotechnical Investigations of Coal Mine Waste Dump Material." Disaster Advances 18, no. 5 (2025): 10–17. https://doi.org/10.25303/185da10017.

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Анотація:

Mining is an essential activity for obtaining the raw materials required for infrastructure and energy needs. During the extraction of coal, a significant amount of overburden (OB) material is generated. Managing the overburden produced by mining activities demands a substantial land for disposal which can be quite challenging in limited spaces. Consequently, it becomes imperative to design safe coal mine OB dumps, optimizing the use of available ground space. The challenge of ensuring the stability of overburden dumps is directly linked to the geotechnical properties of these materials. There

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9

Popovych, Vasyl, Olga Menshykova, Andriy Voloshchyshyn, Yaroslav Genyk, Мykhaylo Petlovanyi, and Bogdan Ilkiv. "Nehézfémek elosztása a szénbányák hulladéklerakóiban statisztikai elemzés alapján." Tájökológiai Lapok 21, no. 2 (2023): 101–15. http://dx.doi.org/10.56617/tl.4957.

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At the UN Climate Change Conference in Glasgow in autumn 2021 (COP26), world leaders and participants decided to phase out coal energy and gradually replace fossil fuels. At COP26, Ukraine has committed to shutting down state-owned coal-fired power plants by 2035, reducing methane emissions by 30% by 2030 and halting deforestation. The waste dumps are also a detrimental factor in coal mining. The determination of the heavy metals content in the waste dumps of coal mines is a topical issue today, as the results of such studies are part of the monitoring of the environmental safety of mining reg

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10

Chobotko, Ihor. "JUSTIFICATION OF PARAMETERS FOR SELECTING EQUIPMENT FOR EXTINGUISHING WASTE COAL." JOURNAL of Donetsk Mining Institute, no. 2 (2021): 68–77. http://dx.doi.org/10.31474/1999-981x-2021-2-68-77.

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Purpose. Investigation of the choice of parameters of equipment for extinguishing coal mining wastes that go to the formation of waste dumps, the choice of the main components of equipment for the operation of technological units and a schematic diagram of equipment for extinguishing coal mining wastes are proposed. Methods. Analysis of existing approaches to technological solutions to prevent combustion of waste dumps; environmental assessment of alternative options for technological solutions to prevent combustion of waste dumps; creation of an environmentally friendly design technology for

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11

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 (2019): 45–65. http://dx.doi.org/10.15407/ggcm2019.04.045.

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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 envi

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12

Golder, A., and I. Roy. "Safety aspects of large dragline-operated opencast mines - An overview." Journal of the Southern African Institute of Mining and Metallurgy 122, no. 1 (2022): 1–5. http://dx.doi.org/10.17159/2411-9717/1452/2022.

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The Jayant opencast operation is one of the largest opencast coal mines in India. Prior to 2008 the mine experienced a number of dragline dump failures, which was a major hindrance in sustaining production. Northern Coalfields Limited (NCL) and the mine management engaged several design, research, and academic institutions to carry out dump slope stability studies, particularly of dragline dumps. Birla Institute of Technology prepared a report on the investigations in May 2009. In this paper we review the findings of the report and the measures taken to tackle the safety aspects of dragline du

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13

Portola, V. A., S. I. Protasov, and E. A. Seregin. "Investigation of temperature and gas release in spontaneous fires at rock dumps." Mining Industry Journal (Gornay Promishlennost), no. 4/2024 (August 23, 2024): 140–45. http://dx.doi.org/10.30686/1609-9192-2024-4-140-145.

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Анотація:

Losses of coal, allowed in the mining process, as well as the creation of conditions that promote the flow of air to the oxidizable combustible components, can result in self-ignition and spontaneous fires in coal and carbon-containing rock accumulations in places of mining operations and at the rock dumps. Spontaneous fires in underground mines are the most dangerous because people can be poisoned by toxic carbon oxidation products released into the mine air. Self-ignition foci can initiate explosions of the accomulated combustible gases and coal dust. Taking into account the danger of sponta

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14

Protasov, Sergey, Evgeny Seregin, Vyacheslav Portola, Alena Bobrovnikova, and Marina Gorbacheva. "Study of the parameters of spontaneous fire seats in coal pit rock dumps." E3S Web of Conferences 315 (2021): 02007. http://dx.doi.org/10.1051/e3sconf/202131502007.

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The presence of coal and coal-bearing rocks in waste rock dumps of open-pit coal mines contributes to the occurrence of spontaneous combustions that negatively affect the environment and people. Measurements of the temperature and the content of hazardous gases in the temperature anomaly that arose in the waste rock dump of the open-pit coal mine were made to assess the parameters of spontaneous fire seats. In the course of the study, the efficiency of detecting spontaneous fire seats in waste rock dumps was assessed by measuring the rock temperature in the wells with a depth of 2.5 m, drilled

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15

Pudari, Harish, Satyanarayana Inumula, and Ram Chandar Karra. "Influence of Underground Workings and Dump Height on the Stability of Overburden Dumps." Disaster Advances 18, no. 5 (2025): 104–13. https://doi.org/10.25303/185da1040113.

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Coal is extracted using both underground and opencast methods of working. During the coal extraction process, opencast mining produces a significant amount of overburden. In opencast mines, the removed overburden material is dumped at significant heights to reduce ground coverage. But overburden dumps with great heights are at risk and sometimes lead to failure of dumps causing loss of men and machinery. Stability issues will become more complicated when the overburden is dumped above the old underground workings. Complication arises because of redistribution of pre-existing stresses from unde

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16

Lewińska-Preis, Lucyna, Ewa Szram, Monika J. Fabiańska, et al. "Selected ions and major and trace elements as contaminants in coal-waste dump water from the Lower and Upper Silesian Coal Basins (Poland)." International Journal of Coal Science & Technology 8, no. 4 (2021): 790–814. http://dx.doi.org/10.1007/s40789-021-00421-9.

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AbstractMany temporary and permanent reservoirs of water occur on or near coal-waste dumps in the Lower- and Upper Silesian Coal Basins (Poland). Little or nothing is known of the degree to which their water chemistry might reflect (i) reservoir type, i.e., whether permanent or temporary, (ii) level of coal-waste thermal activity, i.e., whether inactive or self-heating or burnt-out or (iii) region, i.e., whether the dumps are in Upper- or Lower Silesia. To provide some answers, concentrations of selected ions (NH4+, HCO3−, F−, Cl−, Br−, NO2−, NO3−, PO43−,SO42−) were determined by ion chromatog

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17

Setiarini, Nadya Permata, Mulyanto Soerjodibroto, and Milawarma Milawarma. "Analisis Pengaruh Produksi Alat Gali-Muat dan Alat Angkut terhadap Biaya Coal Getting di Pit Durian PT Jambi Prima Coal." Jurnal Inovasi Pertambangan dan Lingkungan 1, no. 2 (2022): 81–91. http://dx.doi.org/10.15408/jipl.v1i2.20380.

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Kegiatan coal getting di Pit Durian PT. Jambi Prima Coal menggunakan alat gali-muat berupa excavator Kobelco SK 330 dan alat angkut berupa dump truck HINO 500. Penelitian ini bertujuan untuk menganalisis pengaruh produksi alat gali-muat dan alat angkut terhadap besarnya biaya coal getting aktual di bulan Agustus lalu merencanakan langkah – langkah optimasi biaya coal getting pada kondisi ideal. Total biaya coal getting di bulan Agustus mencapai Rp. 10,812/ton dengan total penggunaan alat sebanyak 2 fleet excavator Kobelco SK 330 dan 6 dump truck HINO 500. Produksi excavator Kobelco SK 330 aktu

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18

Rozanski, Zenon, Tomasz Suponik, Piotr Matusiak, et al. "Coal recovery from a coal waste dump." E3S Web of Conferences 8 (2016): 01052. http://dx.doi.org/10.1051/e3sconf/20160801052.

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19

Kiseleva, Irina V., Polina A. Perepelkina, and Maxim L. Burdukovsky. "Natural reclamation of the vegetation and soil cover at the dumps of the Pavlovsk coal field of Primorskiy krai." Vestnik Tomskogo gosudarstvennogo universiteta. Biologiya, no. 65 (2024): 71–91. http://dx.doi.org/10.17223/19988591/65/4.

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Анотація:

Surface mining operations are accompanied by serious disturbance of natural ecosystems. The rationale for a reclamation method is based on both agrochemical and biological properties of the dumped rocks. For this reason, the investigation of primary succession and soil-formation processes at the dumps gains significant importance. The article is aimed to examine the characteristics of natural reclamation of the soil and vegetation cover in the dumps of the Pavlovsk coal field, which are different in composition and relief, and establish the relevance of the dump rocks for biological reclamatio

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20

Saik, Pavlo. "Study of Methods and Development of Technological Scheme for Heat Removal from Rock Waste Dump." Advanced Engineering Forum 25 (November 2017): 128–35. http://dx.doi.org/10.4028/www.scientific.net/aef.25.128.

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The aim of this paper is to study the methods and develop technological scheme for thermal energy removal from coal mine rock waste dumps. The prospects of renewable energy sources development in Ukraine are analyzed. A number of available ways for using the sources of waste heat of mining enterprises, namely: outlet ventilation flow, mine water and other rock waste dumps, are investigated. The technological scheme of heat recovery from rock waste dump using heat pumps, which are component segments of the heat pump geosystem on the basis of borehole underground coal gasification, is developed.

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21

Hu, Jiameng, Baoying Ye, Zhongke Bai, and Yu Feng. "Remote Sensing Monitoring of Vegetation Reclamation in the Antaibao Open-Pit Mine." Remote Sensing 14, no. 22 (2022): 5634. http://dx.doi.org/10.3390/rs14225634.

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After the regreening of the open-pit mine dump, vegetation usually needs to be managed and protected manually for several years before it reaches stability. Due to the spontaneous combustion of coal gangue, surface collapse, and other reasons, secondary damage may occur at any time. Regreening monitoring plays a vital role in the restoration and reconstruction of the mining ecosystem and can provide support for the timely replenishment of seedlings in the damaged area. In this study, remote sensing images were collected from 1986 to 2020 to obtain the NDVI distribution of dumps in the Antaibao

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22

Guzeev, Oleg A., and Natalya P. Korvyakova. "On Classification and Conditionality of Self-Heating Factors of Coal Rock Dump of Donbass." UNIVERSITY NEWS. NORTH-CAUCASIAN REGION. NATURAL SCIENCES SERIES, no. 2 (222) (June 27, 2024): 84–91. http://dx.doi.org/10.18522/1026-2237-2024-2-84-91.

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A classification of self-heating factors of the Donbass coal dump and a schematic model of their interrelation-ships are proposed in relation to the analysis of search criteria and signs of a man-made coal-type object suit-able for long-term heat extraction. The presented classification makes it possible to distinguish between simple, complex and particularly complex, spatial, temporal and spatio-temporal, external and internal, accelerating and slowing factors of self-heating of dump masses, as well as to systematize the specified factors by the levels of their influence on the thermal state

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23

Hargrave, Chad, and Paul McPhee. "Remnant Coal Detection System." Resources 9, no. 4 (2020): 45. http://dx.doi.org/10.3390/resources9040045.

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This paper describes the development and successful implementation of a system designed to detect coal deposits remaining in coal train wagons after unloading (dumping). These undesirable coal deposits constitute both small residual amounts of “carryback”, but also larger “hang-ups” of significant volume that have failed to discharge. The system was originally developed simply to detect and record volumes of carryback, as part of an effort to characterise the extent of the problem for the coal transport industry, but was then enhanced to provide real-time feedback of large hang-ups so that the

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24

Wen, He Xing, Yan Xu, and Xiang Tian Meng. "The Failure Mode Analysis of Open Pit Coal Mine Dump Slope Base on Fast Lagrangian Method." Advanced Materials Research 807-809 (September 2013): 2436–39. http://dx.doi.org/10.4028/www.scientific.net/amr.807-809.2436.

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This paper research on the failure mode of a coal mine dump slope in Inner Mongolia. Firstly, there are some brief introductions of the surface mine dump slope failure mode and the basic principles of Lagrangian; Secondly, the collected geological data is shown. We established the dump slope model by FLAC3D program and than draw conclusions. This method can provide an useful safety information for the opencast coal mine.

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25

Kopytov, Aleksandr, Oleg Kupriyanov, Yury Manakov, and Andrey Kupriyanov. "Coal mining in Kuzbass and new technologies for revegetation of dumps." E3S Web of Conferences 315 (2021): 02016. http://dx.doi.org/10.1051/e3sconf/202131502016.

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Анотація:

During the period of coal mining in Kuzbass, about 9 billion tons of coal were mined, which is 16% of all in-place reserves of coal in Kuzbass. In 2020, coal production amounted to 220.7 million tons, including 164.4 million tons of open pit mining, which is 74% of the total. The negative side of an increase in the share of open pit coal mining is an increase in the area of disturbed lands, which currently reaches 150 thousand hectares. To restore the biological diversity of dumps, a nature-like technology has been developed for revegetation of dumps, which consists in applying a 15 cm thick l

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26

Stepanyuk, Galina, Alexandra Zaushintsena, Sergey Burenkov, Svetlana Svirkova, Alexandr Gavrilov, and Maria Osintseva. "Evaluating the Vegetation Development of Coal-Mine Dumps." Food Processing: Techniques and Technology 52, no. 4 (2022): 807–18. http://dx.doi.org/10.21603/2074-9414-2022-4-2407.

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Анотація:

Reforestation of overburden coal dumps requires new, complex reclamation methods. Competent and well-planned reclamation projects ensure a positive current-state evaluation of disturbed areas. The research objective was to describe the new vegetation that appears on natural areas after industrial disturbance. The study involved pioneer plant communities that developed on a coal dump slope on the Taldinskiy coal field, Kuzbass, in the summer of 2021.The research involved a wide range of engineering and geological surveys, as well as a set of methods of geobotanical, taxonomic, biomorpholo

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27

NARODKHAN, Dashzhan, Tuiak ISABEK, Rustam KHODJAEV, and Nurbol KHUANGAN. "NUMERICAL SIMULATION OF THE STABILITY OF THE SIDES OF COAL MINES UNDER THE INFLUENCE OF DISTRIBUTED LOADS." Sustainable Development of Mountain Territories 12, no. 3 (2020): 428–35. http://dx.doi.org/10.21177/1998-4502-2020-12-3-428-435.

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The open method of solid minerals winning occupies a significant place in the total opening of the mining complex deposits of the Republic of Kazakhstan. In the energy band, a prominent role belongs to the Ekibastuz coal basin, where a number of large coal strip mine operates. The level of subsurface, equal parts of spoil bank of the external and internal stripping after a while lead to complex problems of ensuring the stability and safety of mining operations. The location of large external rock dumps on the bead surface has a negative effect on the stability of the latter. The purpose of the

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28

Gawor, Łukasz. "Polish legal regulations considering recovery of secondary materials from coal mining dumping grounds." Environmental & Socio-economic Studies 2, no. 4 (2014): 43–46. http://dx.doi.org/10.1515/environ-2015-0049.

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Abstract In the article there is presented temporary situation of coal mining dumping grounds in Poland – their inventarization, localization and environmental impacts. The coal mining dumping grounds in Poland are situated in three coal basins: Upper Silesian Coal Basin, Lower Silesian Coal Basin and Lublin Coal Basin. In all mentioned areas occur ca. 270 coal mining waste dumps, covering surface of over 4400 ha. The main environmental impacts connected with dumping grounds are fire hazards, water pollution and a danger of slope sliding. The question of recovery of coal from disposed wastes w

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29

Oorzhak, Chochagai O., Andrey M. Samdan, and Svetlana S. Kurbatskaya. "Accumulation of heavy metals and arsenic in plants in the vicinity of the Chadan coal deposit (Republic of Tuva)." Samara Journal of Science 12, no. 4 (2024): 78–82. http://dx.doi.org/10.55355/snv2023124111.

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The content of copper, zinc, lead, cadmium and cobalt in plant samples from the vicinity of the Severny dump of the Chadansky coal mine in the Republic of Tuva was studied. Heavy metals in plant samples were determined by the Quantum-2mt atomic absorption spectrophotometer. Due to the extra-arid conditions, the studied area belongs to the zone of risky agriculture and there is developed cattle breeding. It was revealed that vegetation typical for steppe communities is developed on the territory of the Chadan coal deposit, represented by wormwood-cereal, grass-grass-wormwood, grass-wormwood-kov

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30

Protasov, S. I., E. A. Seregin, V. A. Portola, and A. A. Bobrovnikova. "Investigation of the Centers of Endogenous Fires at the Rock Dumps of the Coal Enterprises." Occupational Safety in Industry, no. 8 (August 2021): 65–70. http://dx.doi.org/10.24000/0409-2961-2021-8-65-70.

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The formed rock dumps of sections, mines and washing plants are composed of carbonaceous rocks and are capable of spontaneous combustion when the required amount of air is supplied. The conducted studies evaluated the efficiency of detecting a center of spontaneous combustion at the rock dumps of sections by measuring the temperature of rocks in the wells with a depth of 2.5 m, drilled at the distance of 20 m from each other, according to the current normative documents. For the landfill, a dump site with a long-existing center of spontaneous combustion was selected. The experiment showed the

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Nguyen, Phu Minh Vuong, Aleksander Wrana, Sylwester Rajwa, Zenon Różański, and Robert Frączek. "Slope Stability Numerical Analysis and Landslide Prevention of Coal Mine Waste Dump under the Impact of Rainfall—A Case Study of Janina Mine, Poland." Energies 15, no. 21 (2022): 8311. http://dx.doi.org/10.3390/en15218311.

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In Poland, the mining waste from underground coal mines is commonly deposited in surface dump sites, forming slopes or piles of materials dozens of meters high. Because of the loose structure of a mine waste dump slope, landslides may occur after a heavy rainfall. This requires significant labor costs in reforming the mine waste dump sites and disturbs the continuity of the depositing operations. Moreover, if the mine waste dump sites located in the built-up areas, such as in the Janina mine waste dump, landslides apparently can threaten even lives and properties. Therefore, a mine waste dump

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Krasovskyi, Serhii, and Oleksandr Kovrov. "INFLUENCE OF SALTS OF HEAVY METALS Pb AND Cd ON THE VEGETATIVE INDICATORS OF TRITICUM AESTIVUM." Technogenic and Ecological Safety, no. 12(2/2022) (November 25, 2022): 32–36. http://dx.doi.org/10.52363/2522-1892.2022.2.4.

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The Ukrainian energy and fuel sector is highly dependent on mineral extraction. Hard coal accounts for 25-30% of mineral production in Ukraine. All processes, from coal mining to its use for energy, have a negative impact on the environment. One of these impacts is the accumulation of waste rock at an industrial facility, known as a coal dump. These dumps have a negative impact on all spheres of the environment. Coal dumps located in Western Donbas are characterized by a low pH level, a low level of specific electrical conductivity of the soil, a low level of nutrients and a high concentration

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Selyukov, Alexei, Tatiana Gvozdkova, and A. J. S. (Sam) Spearing. "Management of Excess Mined-Out Space of Quarry Fields of Coal Open Pit Mines." E3S Web of Conferences 278 (2021): 01020. http://dx.doi.org/10.1051/e3sconf/202127801020.

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Regardless of the applied technology of coal mining, a technogenic resource of the open pit is formed – excess mined-out space. Excessive mined-out space should be understood as a part of the internal space of a pit that is not used for placing overburden in dumps. The excess mined-out space in the plan is limited by the following: on the flanks of the quarry field and along the uprising by the limiting contour of the quarry, along the inclination – by the possible position of the slope of the dump layer, as close as possible to the working area. The lower boundary corresponds to the position

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Probierz, Krystian, Łukasz Gawor, Iwona Jonczy, and Marek Marcisz. "Valorization of coal mining waste dumps from he mines of Katowicki Holding Węglowy." Gospodarka Surowcami Mineralnymi 33, no. 1 (2017): 35–50. http://dx.doi.org/10.1515/gospo-2017-0006.

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Abstract The cataloging of over 220 coal mining dumping grounds after hard coal mining was carried out on the area of the Upper Silesian Coal Basin (USCB). Considering the significant content of coal particles in the waste, these object may be perceived as perspective anthropogenic deposits. In order to define the possibilities of recovery, an attempt of linking the quality of coal in the deposit and the in waste material was performed. Another step is the reclamation and use of dumping grounds after completing effective recovery processes. The purpose of the research was the cataloging, mappi

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Zhao, Xin Tao, Xin Chun Gao, and Dong Sheng Li. "The Stability Analysis of Nantong Coal Mine Waste Dump, Chongqing and Prevention Measures." Applied Mechanics and Materials 204-208 (October 2012): 3526–31. http://dx.doi.org/10.4028/www.scientific.net/amm.204-208.3526.

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Coal mine waste dump often occur landslide and collapse disasters, the prevention measures and stability analysis of the waste dump must be studied.Firstly,the major factors that can cause landslide in Nantong coal mine waste dump,Chongqing were analyzed,secondly,the stability of four geological cross sections were analyzed by the limiting equilibrium method and FLAC numerical simulation method,the conclusions from two methods are same,and the conclusion is the safety factors of cross sections A and C are smallest and landslide and debris flow disasters will occur easily when face with a long

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Taraba, Boleslav, Petr Gřunděl, and Gabriela Zelenková. "The Limiting Content of Combustibles to Prevent Minestone from the Spreading of Fire." Energies 16, no. 13 (2023): 5054. http://dx.doi.org/10.3390/en16135054.

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The limiting content of combustibles to spread/suppress the fire in the minestone of the coal tailing dump (gangue) was studied. This knowledge appears crucial mainly when deciding on the possible usage of minestone as fireproof material for engineering purposes. Theoretical analysis, laboratory experiments as well as scale (in situ) considerations were performed. In the laboratory, a model series of coal–mineral matter mixtures and six representative minestone samples of coal tailing dump (gangue) were investigated. The thermoanalytical (TG/DSC) method was used to evaluate the content of comb

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Endriantho, Muhammad, Pandu Zea Ardiansyah, and Alex Prabudi. "PERENCANAAN IN PIT DUMP (IPD) PIT D2 UNTUK OPPORTUNITY REDUCE DISTANCE DAN MITIGASI DARI BAHAYA GEOTEKNIK BLOK 1-4, BINUNGAN MINE OPERATION 1 – PT. BERAU COAL." Prosiding Temu Profesi Tahunan PERHAPI 1, no. 1 (2020): 545–52. http://dx.doi.org/10.36986/ptptp.v1i1.96.

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ABSTRAK Pit D2 merupakan salah satu Pit dengan metode tambang terbuka di PT. Berau Coal yang berlokasi di Binungan Mine Operation-1. Pit D2 di kerjakan oleh PT. Sapta Indra Sejati (PT. SIS) sebagai mitra kerja dari PT Berau Coal. Target produksi tahun 2019 Pit D2 yaitu overburden 16.117.353 BCM, Coal 1.473.686 MT dengan SR 9,59. Pit D2 berada disisi selatan sungai Kelay dan merupakan akses utama jalan hauling coal BMO1 dan transportasi karyawan dari Rumah / mess ke site Tambang BMO1 dan BMO2.Secara LOM, Plan Disposal terdapat pada Out Pit Dump (OPD) D2 dengan kapasitas disposal 30 MBCM pada ja

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Trilikauskas, Laimonas, and Sergey Luzyanin. "Aranei, Lycosidae in Coal Open Pit Dump Ecosystem in Kuzbass." E3S Web of Conferences 41 (2018): 02021. http://dx.doi.org/10.1051/e3sconf/20184102021.

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Using one of the Kuzbass coal mines as an example, it is shown that Lycosidae is the most important group of spiders that settles in reclaimed dumps at the early stages of overgrowing. The most commonand widespread wolf spiders on the dumps are Alopecosa accentuata, Alopecosa cuneata, and Xerolycosa miniata. The maximum of species diversity and dynamic density was discovered on the slope of the 15-yearolddump, where 14 species of Lycosidae were observed, and the dynamicdensity reached almost 300 specimens per 100 trap-days. The greatest number of the family Lycosidae spiders’ species occurred

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KACHURIN, NIKOLAY, EVGENY KUREKHIN, and VLADIMIR MELNIK. "SUBSTANTIA TION OF PARAMETERS OF EXCAVATOR-AUTOMOBILE COMPLEXES AT COAL MINES TAKING INTO ACCOUNT THE RELIABILITY FACTOR." News of the Tula state university. Sciences of Earth 1, no. 1 (2023): 239–50. http://dx.doi.org/10.46689/2218-5194-2023-1-1-239-250.

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The article presents the factors affecting the performance of excavators and dump trucks. The main dependences of the technical readiness coefficient of hydraulic excavators (Hitachi, Volvo, Komatsu PC, Liebherr) with a bucket capacity of 1...3.5 m3, in combination with articulated dump trucks Volvo, Bell, BelAZ (with a load capacity of 10-20 tons), quarry dump trucks BelAZ, Terex, Caterpillar, Komatsu (40.100 tons) are given. To increase the efficiency of the process of transporting rock mass at coal mines, the regularities of changes in the performance of quarry dump trucks have been studied

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Luzyanin, Sergey L., Anna A. Resenchuk, Maria O. Osipova, and Dmitry A. Sidorov. "Diversity of ground-dwelling arthropods on overburden dumps after coal mining." Ecologica Montenegrina 61 (March 11, 2023): 68–87. http://dx.doi.org/10.37828/em.2023.61.8.

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Technogenic landscapes formed by coal mining are unique model sites for studying primary succession. We studied the formation of arthropod communities on rock dumps at coal mine dump sites of different ages and in natural environments. Using the pitfall traps, 5 classes of arthropods were found, with the domination of Insecta and Arachnida. The species composition for most of the studied groups of invertebrates was determined, the Berger-Parker dominance and Shannon species diversity indices were calculated. It has been established that the colonization of dumps depends not only on the age of

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Dołhańczuk-Śródka, Agnieszka, Łukasz Wróbel, Andrzej Kłos, and Maria Wacławek. "Assessment of Gamma Dose Rate at Mine Waste Dump." Ecological Chemistry and Engineering S 20, no. 3 (2013): 555–65. http://dx.doi.org/10.2478/eces-2013-0031.

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Abstract Exploitation of coal deposits in Upper Silesia is associated with production of large quantities of waste deposited at dumps. The tested samples from five dumps showed different radioactivity from each other. Radioactivity measurements made it possible to analyze the degree of risk with the factors specified by UNSCEAR such as radium equivalent activity Raeq, internal Ein and external Eex occupancy factor. There is a raised level of radiation in dumps as compared with outside dump areas. In the study area, however, there is no risk associated with elevated levels of radiation in relat

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Mohanty, Madhumita, Rajib Sarkar, and Sarat Kumar Das. "A Critical Review on Static and Dynamic Performance of Coal Mine Overburden Dump Slopes: Present Status and Way Forward." Journal Of The Geological Society Of India 100, no. 9 (2024): 1271–86. http://dx.doi.org/10.17491/jgsi/2024/173981.

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ABSTRACT In the last two decades, opencast coal mining has dominated the coal mining sector of India in comparison to the underground mining. This has caused an increase in large quantity of overburden (OB) waste material which is generally dumped in the form of slope commonly known as OB dump slope. The highly heterogeneous OB dump materials are generally dumped in the loose state implying that the OB dump slopes are highly vulnerable to failure. Therefore, proper functioning of the mining activities requires stable OB dump slopes. This paper briefly provides an overview on the formation of O

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Turetskaya, N. Yu, and T. A. Chikisheva. "Enrichment of sludge dump coal by spiral separation." Earth sciences and subsoil use 45, no. 4 (2023): 436–45. http://dx.doi.org/10.21285/2686-9993-2022-45-4-436-445.

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The purpose of the presented research is to study the possibility of obtaining an additional coal product and ironcontaining concentrate from the sludge of a coal hydraulic dump. The research involved the study of the material composition of the initial sludge and technological tests. Material composition was examined using chemical, granulometric and mineralogical analyzes, the technological tests were conducted according to the gravitational-magnetic enrichment scheme. A spiral separator was used as the main enrichment equipment. Finishing operation was performed by the method of wet magneti

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Kutepov, Yuriy, Aleksandr Mironov, Maksim Sablin, and Elena Borger. "Substantiation of Safe Conditions During Undermining of Hydraulic Waste Disposal." E3S Web of Conferences 41 (2018): 01007. http://dx.doi.org/10.1051/e3sconf/20184101007.

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This article considers mining and geological conditions of the site “Blagodatny” of the mine named after A.D. Ruban located underneaththe old open pit coal mine and the hydraulic-mine dump. The potentially dangerous zones in the undermined rock mass have been identified based onthe conditions of formation of water inflow into mine workings. Safe depthof coal seams mining has been calculated depending on the type of water body – the hydraulic-mine dump.

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Zenkov, I. V., Hung Trinh Le, V. N. Vokin, et al. "Ecologico-economic Substantiation of Environmental Remediation of Rock Disposal Dump at the Coal-mining Regions of Siberia and the Far East." Ecology and Industry of Russia 25, no. 11 (2021): 48–53. http://dx.doi.org/10.18412/1816-0395-2021-11-48-53.

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Based on the remote sensing data, the aggregated information has been provided on rock disposal dumps of the surface and abandoned coal deposits in the mining regions of Siberia and the Far East. High-resolution satellite images have helped to square the acreage of slope grade horizontal alignments of rock disposal dumps, as well as the yielding capacity of plant ecosystems on the dump slopes. The rock dumps architecture has been proposed to ensure the ecological balance generation at the appropriate pace. The economic indicators of the remedial ecology package work at the rock dumps have been

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Beshley, S., V. Baranov, and Y. Shpak. "Effect of coal fly ash and potassium humate on nitrogen and carbon contents in coal industry dump substrate and organs of Sorghum drummondii (Nees ex Steud.) Millsp. & Chase." Visnyk of Lviv University. Biological series, no. 85 (February 25, 2021): 45–52. http://dx.doi.org/10.30970/vlubs.2021.85.05.

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Researched ammonium, nitrite and nitrate nitrogen and organic carbon contents in gray-black unburned rock substrate from coal industry waste rock dump of Central Enrichment Factory (CEF) owned by PJSC “Lviv Coal Company” (Lviv Oblast, Ukraine) and total nitrogen and organic carbon contents in organs of Sorghum drummondii (Nees ex Steud.) Millsp. & Chase under effect of coal fly ash from the Dobrotvir thermal power plant (Lviv Oblast, Ukraine) and potassium humate “ГКВ-45” (made by LLC “PARK”, Lviv Oblast, Ukraine). Found high content of organic carbon and ammonium nitrogen in waste rock du

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Prabowo, Heri, and Marcelino UZD. "Kajian Teknis Produktifitas dan Keserasian Excavator dengan Dump Truck pada Kegiatan Coal Getting Seam 18 PT. Kurnia Alam Investama Kabupaten Batanghari Provinsi Jambi." CIVED 10, no. 2 (2023): 398–408. http://dx.doi.org/10.24036/cived.v10i2.397.

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Penelitian ini bertujuan menghitung produktifitas dan keserasian excavator dengan dump truck pada kegiatan coal getting seam 18. Produktivitas dan kesesuaian peralatan penggalian dan pengangkutan perlu dihitung untuk menentukan nilai produktivitas mesin dalam memenuhi target produksi batubara yang ditetapkan. Metode penelitian dengan cara observasi di lapangan menggunakan data primer yang digunakan untuk perhitungan cycle time dari excavator dan alat angkut pada kegiatan coal getting. Menganalisis data dari nilai produktivitas mesin yang digunakan dalam kegiatan penambangan batubara serta kese

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EFIMOV, V. I., G. V. STAS, T. V. KORCHAGINA, and D. O. PROKHOROV. "METHODOLOGICAL PRINCIPALS OF THE INTEGRATED ECOLOGICAL EVALUATING ENVIRONMENTAL INFLUENCE OF COAL MINE DAMPS." News of the Tula state university. Sciences of Earth 3, no. 1 (2020): 18–28. http://dx.doi.org/10.46689/2218-5194-2020-3-1-18-28.

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It is shown that throughout all geo-technological periods of the existence of coal mines, there is a negative impact of waste dumps on the atmosphere, water resources and soil. Theoretical propositions have been formulated, in accordance with which the migration of liquid pollutants into the soil laver and underlving rocks in the zone of action of the waste dump is described by a one-dimensional equation of convective diffusion, taking into account the kinetics of sorption of pollutants. It is recommended to model the air movement when flowing around the waste dumps by the O. Reynolds system o

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Musina, V. R., I. V. Golovko, and S. Shermatova. "Type of crossing of coal waste dumps by geodynamical dangerous zones." Mining informational and analytical bulletin, no. 6-1 (May 20, 2020): 233–41. http://dx.doi.org/10.25018/0236-1493-2020-61-0-233-241.

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The paper develops the concept of the existence geodynamically dangerous zones in the earth’s crust. These zones affects to the safety of the state of engineering structures and mining operations. The concept of geodynamic zoning is used, according to which geodynamically dangerous zones occurs during the interaction of blocks of the earth’s crust of various hierarchical ranks. On the example of the East Donbass, the typification of the intersection of coal waste dumps with geodynamically dangerous zones is considered. The position of 34 burning and burnt out dumps located near the cities of S

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Zhang, Meng, Jin Man Wang, Zhong Ke Bai, and Chun Lei Liu. "The Topsoil Quality Variation Under Different Reclamation Modes in Pasture Opencast Coal Mine of China." Advanced Materials Research 518-523 (May 2012): 4790–95. http://dx.doi.org/10.4028/www.scientific.net/amr.518-523.4790.

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As the lack of topsoil resources, and the shortage of water resources, the ecological environment is extremely fragile in the pasture opencast coal mine area of China. Therefore, that the way to achieve the most efficient use of the limited topsoil resources in pasture area, plays a crucial role in land reclamation and ecological restoration. East II opencast coal mine in Datang, Inner Mongolia was taken as an example to analyze topsoil quality variation under different dump platform and slope reclamation modes in the pasture opencast coal mine area. The field investigation method was used in

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