Journal articles: 'Underground mining equipment'

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Samanta, B. K. "Underground Mining Project Equipment Selection Model." International Journal of Computer Trends and Technology 44, no. 1 (February 25, 2017): 50–57. http://dx.doi.org/10.14445/22312803/ijctt-v44p110.

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Song, Zhen, Håkan Schunnesson, Mikael Rinne, and John Sturgul. "Intelligent Scheduling for Underground Mobile Mining Equipment." PLOS ONE 10, no. 6 (June 22, 2015): e0131003. http://dx.doi.org/10.1371/journal.pone.0131003.

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Lynas, D., and R. Burgess-Limerick. "Whole-Body Vibration Exposures in Undeground Coal Mining Operations." Proceedings of the Human Factors and Ergonomics Society Annual Meeting 60, no. 1 (September 2016): 914–18. http://dx.doi.org/10.1177/1541931213601210.

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Studies conducted on surface coal mining equipment have identified whole-body vibration as a significant hazard. Operators of underground mobile equipment, particularly shuttle cars and transport vehicles, are likely to be exposed to significant levels of whole-body vibration. To date, measuring whole-body vibration from underground mining mobile equipment has been difficult due to the strict guidelines governing the use of electrical equipment in underground mines. This paper presents data obtained from two low-methane coal mines using an iOS application installed on iPod Touch devices. The majority of measurements taken from a range of mobile plant and equipment in use at the underground coal mines exceeded the ISO2631.1 Health Guidance Caution Zone. Further investigations are being undertaken to develop a thorough understanding of whole-body vibration exposures to which operators of mobile equipment used in underground coal mines are exposed and the opportunities for application of this information to assist mine site safety, health and risk management processes.

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EFIMOV, Viktor, Nikolay ABRAMKIN, Vladimir VERNIGOR, and Behruz KHAKIMOV. "UNDERGROUND MINING EQUIPMENT KITS COAL IN SHALLOW BEDS." Sustainable Development of Mountain Territories 12, no. 4 (December 30, 2020): 510–15. http://dx.doi.org/10.21177/1998-4502-2020-12-4-510-515.

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In Russian practice, at the author of the mines of the revolution, equipment was used, which was well made at the pest of domestic factories. In view of the core bankruptcy of the domestic factories, the coat of arms of the miners were forced to carry the burden and had the choice to buy foreign equipment.. In 90-ies tax on trail equipment, which was not produced in Russian boards, was not collected at all. The miners bought the equipment abroad, without any additional problems for the equipment import did not arise. Powered roof support and shearers are not produced in Russia and the plants had to buy them abroad both the avalanche and the separate equipment. The term fund "complex" pest has a conditional blue character, the conclusion reflecting taking only the stage of the kinematic announcement of the connection, the input of the electrohydraulic and if the electronic system suddenly controls interchangeable author sets of equipment address. temperament It is advisable to revise the concept of more classification of the kiln cleaning mechanized complexes and the lighthouse to adjust the core of the customs due to legislation to address some of the tinder customs duties on the author of the mining equipment.

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Tauger, Vitalii, Niyaz Valiev, Evgenii Volkov, Denis Simisinov, and Vitalii Adas. "Remote-controlled robotic complex for underground mining." E3S Web of Conferences 177 (2020): 03006. http://dx.doi.org/10.1051/e3sconf/202017703006.

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As the global rich mineral deposits are becoming depleted, the deposit development is performed with a deeper bedding and in much more difficult mining and geological conditions. This circumstance determines both the increase in the labor intensity and development costs, and the increased likelihood of emergencies. In recent years, the accidents have become more frequent at the Russian mining enterprises, aggravated not only by the significant damages, but also by the casualties. The ongoing efforts to correct the tight situation do not have a perceptible effect. A complete exclusion of the presence of people underground should be considered as a drastic remedy for preventing human casualties. It can be achieved only through the use of machinery and technology for manless mining using the automated control systems. The Department of Engineering Mechanics of the Ural State Mining University has formed the concept of a “remote-controlled robotic complex for underground mining”, according to which a surface-controlled system of mining equipment will absolve the miners from working underground. At present, the favorable conditions have been laid for combining the in-mine equipment and permanent installations into a single complex under the control of operators located on the soil surface. In accordance with the concept, the technological robotic complex is transformed into a mechatronic system of the underground mining equipment. The mechatronic system is divided into the separate subsystems by the types of equipment. Particular attention is paid to the automated complex remote-control system based on the telemetry principles using the latest means of data acquisition, conversion and transmission. The system interface provides the most efficient and error-free performance of the operator throughout the entire shift. The concept implementation of the remote-controlled robotic complex in the mining industry will allow not only to avoid the tragic consequences of emergencies in the mines, but also to elevate the national mining equipment and technology to the highest world standards.

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Okolnishnikov, V. "An MTSS Based Underground Coal Mining Simulation Model." Engineering, Technology & Applied Science Research 8, no. 3 (June 19, 2018): 3060–63. http://dx.doi.org/10.48084/etasr.2087.

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In the frames of simulation system, a specialized library of simulating models of mining equipment and coal seam (MTSS) was implemented. Using the specialized simulating model library of technological mining equipment an integrated model for technological processes of underground coal mining in stoping face was developed. The main goal of simulation for coal mining technological processes in stoping face is the evaluation of productivity of a cutter-loader depending on different factors like the technical parameters of the cutter-loader, size of the longwall face, geophysical state of the coal seam.

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Wang, Yanxiang, Daolong Yang, Bangsheng Xing, Tingting Zhao, Zhiyi Sun, Qianqian Huang, and Qian Li. "Recent Patents on Thin Coal Seam Mining Equipment." Recent Patents on Mechanical Engineering 13, no. 2 (May 31, 2020): 99–108. http://dx.doi.org/10.2174/2212797613666200221143251.

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Background:: China's thin and extremely thin coal seam resources are widely distributed and rich in reserves. These coal seams account for 20% of the recoverable reserves, with 9.83 billion tons of industrial reserves and 6.15 billion tons of recoverable reserves. Objective: Due to the complex geological conditions of the thin coal seam, the plow mining method cannot be effectively popularized, and the drum mining method is difficult to be popularized and applied in small and medium-sized coal mines, so it is necessary to find other more advantageous alternative mining methods. Methods: The equipment integrates mining operations, conveying operations, and supporting operations, and is suitable for mining short and extremely thin coal seam with a height of 0.35m-0.8m and width of 2m-20m. It has the advantages of the low body of the shearer, no additional support on the working face, and small underground space. The mining efficiency of thin coal seam and very thin coal seam can be improved and the mining cost can be reduced. Results: Thin coal seam shear mining combines mining, conveying, and supporting processes together and has the advantages of a low fuselage, no extra support required for the working face, and feasibility in a small underground space. Conclusion: The summarized mining method can improve the mining efficiency of thin and extremely thin coal seams, reduce mining costs, and incorporate green mining practices, which take both mining economy and safety into account.

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Burgess-Limerick, Robin. "Injuries Associated with Underground Coal Mining Equipment in Australia." Ergonomics Open Journal 4, no. 1 (August 27, 2011): 62–73. http://dx.doi.org/10.2174/1875934301104010062.

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Vayenas, Nick, and Sihong Peng. "Reliability analysis of underground mining equipment using genetic algorithms." Journal of Quality in Maintenance Engineering 20, no. 1 (March 4, 2014): 32–50. http://dx.doi.org/10.1108/jqme-02-2013-0006.

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Purpose – While increased mechanization and automation make considerable contributions to mine productivity, unexpected equipment failures and imperfect planned or routine maintenance prohibit the maximum possible utilization of sophisticated mining equipment and require significant amount of extra capital investment. Traditional preventive/planned maintenance is usually scheduled at a fixed interval based on maintenance personnel's experience and it can result in decreasing reliability. This paper deals with reliability analysis and prediction for mining machinery. A software tool called GenRel is discussed with its theoretical background, applied algorithms and its current improvements. In GenRel, it is assumed that failures of mining equipment caused by an array of factors (e.g. age of equipment, operating environment) follow the biological evolution theory. GenRel then simulates the failure occurrences during a time period of interest based on Genetic Algorithms (GAs) combined with a number of statistical procedures. The paper also discusses a case study of two mine hoists. The purpose of this paper is to investigate whether or not GenRel can be applied for reliability analysis of mine hoists in real life. Design/methodology/approach – Statistical testing methods are applied to examine the similarity between the predicted data set with the real-life data set in the same time period. The data employed in this case study is compiled from two mine hoists from the Sudbury area in Ontario, Canada. Potential applications of the reliability assessment results yielded from GenRel include reliability-centered maintenance planning and production simulation. Findings – The case studies shown in this paper demonstrate successful applications of a GAs-based software, GenRel, to analyze and predict dynamic reliability characteristics of two hoist systems. Two separate case studies in Mine A and Mine B at a time interval of three months both present acceptable prediction results at a given level of confidence, 5 percent. Practical implications – Potential applications of the reliability assessment results yielded from GenRel include reliability-centered maintenance planning and production simulation. Originality/value – Compared to conventional mathematical models, GAs offer several key advantages. To the best of the authors’ knowledge, there has not been a wide application of GAs in hoist reliability assessment and prediction. In addition, the authors bring discrete distribution functions to the software tool (GenRel) for the first time and significantly improve computing efficiency. The results of the case studies demonstrate successful application of GenRel in assessing and predicting hoist reliability, and this may lead to better preventative maintenance management in the industry.

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Hamrick, Christopher A., Kim M. Cornelius, E. William Rossi, and Richard L. Unger. "Appropriate ingress/egress dimensions for mobile underground mining equipment." International Journal of Industrial Ergonomics 11, no. 1 (January 1993): 13–18. http://dx.doi.org/10.1016/0169-8141(93)90050-n.

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Selan, J. L., M. M. Ayoub, J. L. Smith, and J. Peay. "Biomechanics and Work Physiology in Underground Mining." Proceedings of the Human Factors Society Annual Meeting 29, no. 5 (October 1985): 521–25. http://dx.doi.org/10.1177/154193128502900526.

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A biomechanical and work physiology study in underground mining was conducted. Anthropometric, isometric strength, and physical work capacity (PWC) data were collected. Female miners were significantly heavier and larger in circumferential measurements than comparison groups (males did not differ from other groups in terms of anthropometry). Underground miners were significantly stronger than comparison groups, and were rated low in terms of PWC. Energy expenditure measurements were made on 35 underground mining tasks; the majority falling under the categories of moderate to heavy work. Postural stresses were assessed using a modified version of the Ovako Working Posture Analysis System (OWAS; developed by Karhu, et al. 1977). Several tasks appeared to cause substantial postural stress. Postural stress was correlated significantly with physiological demand. Recommendations based on the findings of the study included: increased use of powered equipment in place of manual labor for several tasks, modifications to existing equipment designs, and modifications to the work clothing design standards developed by Caddel, et al. (1981) for low coal miners.

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Balan, George, Iosif Andras, Nicolae Ilias, and Sorin Mihai Radu. "New Methods of Mining Technological System’s Performance Analysis." Applied Mechanics and Materials 789-790 (September 2015): 1317–22. http://dx.doi.org/10.4028/www.scientific.net/amm.789-790.1317.

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The mining production systems, both for underground and open pit extraction consist mainly in a string of equipment starting with the winning equipment (shearer loader, in case of underground longwall mining or bucket wheel excavator in case of open pit mining), hauling equipment (armored face conveyor in longwall mining or the on-board belt conveyor in case of excavators), main conveying equipment (belt conveyor in both cases), transfer devices, stock pile or bunker feeding equipment. This system of mainly serially connected elements is characterized by the throughput (overall amount of bulk coal respectively overburden rock produced), which is dependent on the functioning state of each involved equipment, and is strongly affected also by the process inherent variability due to the randomness of the involved processes (e.g. the cutting properties of the rock). In order to model and simulate such production systems, some probabilistic methods are applied arising from the artificial intelligence approach, involving unit operations and equipment, as the overall system as a whole, namely the Monte Carlo simulation, neural networks, fuzzy systems, and the Load Strength Interference methods. The results obtained are convergent and offer the opportunity for further developments of their application in the study of mining production systems.

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Brzychczy, Edyta, Marek Kęsek, Aneta Napieraj, and Roman Magda. "An expert system for underground coal mine planning." Gospodarka Surowcami Mineralnymi 33, no. 2 (June 27, 2017): 113–27. http://dx.doi.org/10.1515/gospo-2017-0015.

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Abstract In the current market situation, mining companies are faced with the necessity to take actions to improve the efficiency of the mining process. Some of these actions enforce a centralization of activities in the field of deposit economy and planning of mining operations in these companies. In the planning process with such scope the large knowledge of designers is required, which could be additionally supported by a knowledge base, supplied by information and data obtained during the completion of mining works, which also allows for use of the expert knowledge of other organizational units of the mine or the company. The paper presents an original expert system for mining works planning in the underground hard coal mines (MinePlanEx). The aim of the developed system is to support the designers of production planning in hard coal mines within the scope of: equipment selection, mining machinery combining into equipment sets and determining characteristic curves regarding the production results in the planned excavations. Knowledge of the system is represented by the rules selected with the chosen data mining techniques (association rules and classification trees) and obtained from experts. The first part of the paper presents a knowledge base, knowledge acquisition module and inference module which are the main components of the system. The second part contains an example of system operation.

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Działak, Paulina, Jacek Karliński, and Eugeniusz Rusiński. "Method of operator safety assessment for underground mobile mining equipment." E3S Web of Conferences 29 (2018): 00009. http://dx.doi.org/10.1051/e3sconf/20182900009.

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The paper presents a method of assessing the safety of operators of mobile mining equipment (MME), which is adapted to current and future geological and mining conditions. The authors focused on underground mines, with special consideration of copper mines (KGHM). As extraction reaches into deeper layers of the deposit it can activate natural hazards, which, thus far, have been considered unusual and whose range and intensity are different depending on the field of operation. One of the main hazards that affect work safety and can become the main barrier in the exploitation of deposits at greater depths is climate threat. The authors have analysed the phenomena which may impact the safety of MME operators, with consideration of accidents that have not yet been studied and are not covered by the current safety standards for this group of miners. An attempt was made to develop a method for assessing the safety of MME operators, which takes into account the mentioned natural hazards and which is adapted to current and future environmental conditions in underground mines.

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Hall, R. A., P. F. Knights, and L. K. Daneshmend. "Pareto analysis and condition-based maintenance of underground mining equipment." Mining Technology 109, no. 1 (April 2000): 14–22. http://dx.doi.org/10.1179/mnt.2000.109.1.14.

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Zhang, Qiang, Jixiong Zhang, Zhongya Wu, and Yang Chen. "Overview of Solid Backfilling Technology Based on Coal-Waste Underground Separation in China." Sustainability 11, no. 7 (April 9, 2019): 2118. http://dx.doi.org/10.3390/su11072118.

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China is the world’s largest coal producer country. However, large-scale coal mining has led to severe environmental pollution issues such as surface subsidence and gangue piling up. The gangue discharging amount has ranked the first in the world and coal mine enterprises are facing enormous discharging reduction pressure. This paper summarizes the research progress of the solid backfilling mining technology and then illustrates the realistic demands and significance of implementing underground coal-waste separation. It also focuses on the technical principles, systems and key equipment of the common underground coal-waste separation methods, such as the selective crushing method, the dense medium shallow groove method, the vibro-assisted jigging method and full-size water separation method and ray identification method. In addition, the selection steps of underground coal-waste separation method, the design process of large section separation chamber and the design principle of separation and backfilling system are proposed, finally, the mining-separating-backfilling + X for coal mining is put forward. By combining the technology of mining-separating-backfilling with other technologies, such as gob-side entry retaining with non-pillar mining, gas extraction, solid waste treatment, water protection mining, mining under buildings, railways and water bodies, the integrated mining methods, mining-separating-backfilling + setting pillars, gas drainage, treatment, protection and prevention methods are formed. It also introduced the ‘mining-separating-backfilling + gas extraction’ technology’s whole idea, system arrangement, separation equipment and practical engineering application effects based on the specific engineering case of pingmei no. 12 coal mine. The results indicate that the integration of underground coal-waste separation and solid backfilling technology could achieve gangue discharging reduction, underground washing and surface subsidence control. It is effective at realizing green mining.

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Chen, Wen Gang, Xiao Jie Song, and Wei Liu. "Design of Underground Mining Personnel Locating System Based on nRF24L01." Advanced Materials Research 383-390 (November 2011): 1310–12. http://dx.doi.org/10.4028/www.scientific.net/amr.383-390.1310.

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An underground mining personnel locating system which takes nRF24L01 to establish data base-station for communication was demonstrated in the paper. The location and identification of the E-tag wearing mining personnel can be accomplished through the signal transmit-receiving of every base-station’s transceiver. The concerned information will be transmitted to the control station through the data substation to accomplish the personnel and equipment location, thus enhancing the underground mining safety production, disaster relief ability and management efficiency.

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Stupnik, Mykola, Vsevolod Kalinichenko, Olena Kalinichenko, and Alexey Pochtarev. "Technological measures to enhance efficiency of mining ore from stopes applying self-propelled equipment." E3S Web of Conferences 280 (2021): 08010. http://dx.doi.org/10.1051/e3sconf/202128008010.

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The work analyzes current technologies of ore mining applying self-propelled equipment in underground conditions; studies practices of using the equipment in general and for broken ore transportation only; considers performance of mining enterprises in similar mining-geological and miningtechnical conditions; analyzes and generalizes causes of high ore loss and dilution rates in underground mining in Kryvyi Rih iron ore basin, thus revealing a problem of providing high efficiency and increased ore extraction with minimal quality deterioration. Marketable ore production is affected by decreased quality and high broken ore losses. Incomplete balance ore extraction when breaking and drawing ore from the stope results in deterioration of mining indices. Ore dilution with waste rocks leads to decreased ore content in the mined mass as compared with that in the ore massif. The research enables development and substantiation of the rational technology of ore drawing and transportation as well as designing a new structure of the loading face to ensure increase of the drawn ore quality indices.

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Maas, Michael. "Equipment for underground mining: Projects and new developments at Deilmann-Haniel Mining Systems GmbH." Mining Report 150, no. 4 (August 2014): 223–27. http://dx.doi.org/10.1002/mire.201400025.

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Karlsson, Sofia, Britt-Inger Saveman, Magnus Hultin, Ulf Björnstig, and Lina Gyllencreutz. "Preparedness for peer first response to mining emergencies resulting in injuries: a cross-sectional study." BMJ Open 10, no. 11 (November 2020): e036094. http://dx.doi.org/10.1136/bmjopen-2019-036094.

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ObjectiveIdentify factors of preparedness for peer first response to underground mining emergencies with injured victims.DesignCross-sectional questionnaire study of Swedish underground mineworkers.SettingSeven out of nine Swedish underground mines.ParticipantsA total of 741 mineworkers out of 1022 (73%) participated in this study.InterventionsNone.Outcome measuresLevel of preparedness for emergencies with injuries in underground mines.ResultsThree factors influenced the preparedness of mineworkers for a peer first response: (1) familiarity with rescue procedures during emergencies with injuries; (2) risk perception of emergencies with injuries and (3) experience of using self-protective and first aid equipment. Mineworkers who believed that they knew how to handle emergencies with injuries (OR 1.30, 95% CI 1.22 to 1.38) and those who were trained in the use of self-protective and first aid equipment (OR 1.19, 95% CI 1.07 to 1.32) considered themselves to be better prepared for a peer first response than those who were unfamiliar with the rescue procedures or who had not used self-protective and first aid equipment. However, mineworkers who rated the risk for emergencies with injuries as high considered themselves to be less prepared than those who rated the risk as low (OR 0.95, 95% CI 0.91 to 0.98).ConclusionThis study identified three factors that were important for the peer-support preparedness of underground mineworkers. More research is needed to adapt and contextualise first aid courses to the needs of underground peer responders.

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Toderaş, Mihaela, and Ciprian Danciu. "Safety, health and hazards related to using of sprayed concrete in underground mining works." MATEC Web of Conferences 305 (2020): 00067. http://dx.doi.org/10.1051/matecconf/202030500067.

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Sprayed concrete is a traditional building material, but at the same time it represents a highly innovative technology. The development of sprayed concrete includes material science and advances spraying equipment technology. The performance and characteristics of sprayed concrete depend mainly on the condition of its application, equipments, experience and competence of the crew performing the sprayed concrete operation. This paper presents some aspects regarding a sprayed concrete operation that may have multiple hazards due to the equipment, pressure value and the projection of rebound. In addition, the use of sprayed concrete in underground mining works, involve an adequate ventilation in the application area. Special attention has to be given to chemical admixtures and complementary products use in the constituent materials and finally, in the composition of sprayed concrete.

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Yang Jianjian, Yan Weidong, Jiang Hai, Hao Yingge, Wu Siyao, and Wu Miao. "Development and Application of Data Logger for Coal Underground Mining Equipment." Journal of Convergence Information Technology 8, no. 9 (May 15, 2013): 810–18. http://dx.doi.org/10.4156/jcit.vol8.issue9.100.

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Gallagher, S., A. G. Mayton, R. L. Unger, C. A. Hamrick, and P. Sonier. "Computer Design and Evaluation Tool for Illuminating Underground Coal-Mining Equipment." Journal of the Illuminating Engineering Society 25, no. 1 (January 1996): 3–12. http://dx.doi.org/10.1080/00994480.1996.10748128.

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Lynas, Danellie, and Robin Burgess-Limerick. "Whole-body vibration associated with underground coal mining equipment in Australia." Applied Ergonomics 89 (November 2020): 103162. http://dx.doi.org/10.1016/j.apergo.2020.103162.

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Kharlampenkov, Evgeny, and Irina Kudryashova. "Factor Model of Labor Productivity in the Coal Industry." Bulletin of Kemerovo State University. Series: Political, Sociological and Economic sciences 2020, no. 4 (January 12, 2021): 557–67. http://dx.doi.org/10.21603/2500-3372-2020-5-4-557-567.

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The article introduces the problem of increasing the labor efficiency at Russian coal enterprises. Using the case of Kuzbass, the authors examined factors that affect labor efficiency in coal industry, e.g. new equipment and mining technologies, qualified personnel, robotics, new quality management and information technologies, etc. They used a multiplicative model to estimate the key factors and made forecast of its dynamics up to 2035 for open and underground mining. The authors believe that effective models of mining enterprise management are impossible without a radical increase in labor efficiency, since it indicates labor costs in the production of the final product per unit of time. Labor efficiency in the open-pit mining is higher, as it has lower labor costs and offers a simple and safe way of organizing labor processes. However, new equipment can increase the efficiency of underground mining. Underground mines also demonstrate a faster growth of labor efficiency than open pits. The authors justified the need to assess labor efficiency using a system analysis and a multiplicative model. As global coal market continues to deteriorate, mining labor efficiency can still maintain positive long-term rates of growth if it manages to optimize deliveries and increase the labor efficiency at the federal level. The research possesses considerable theoretical and practical significance as it offers a solution for of the most relevant challenges.

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Yu, Haoxuan, and Shuai Li. "The Function Design for the Communication-Based Train Control (CBTC) System: How to Solve the Problems in the Underground Mine Rail Transportation?" Applied System Innovation 4, no. 2 (April 27, 2021): 31. http://dx.doi.org/10.3390/asi4020031.

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With the continuous development of the mining industry, the world’s major mines have gradually entered the intelligent stage. In intelligent underground mines, the operation roads of the underground transportation equipment are very complicated, and the monitoring and control of the underground traffic have become the problems to be solved in the intelligent underground mines. Therefore, on the basis of solving the practical problems of underground mines, the concept paper discusses the possibility of the communication-based train control (CBTC) system being applied to underground mines through the summary and induction of the related literature. As mining engineers, we have proposed the function design for the CBTC system to solve the problems in underground mine rail transportation, but we still need to continue to work hard for the future development of the underground mines. The concept paper serves as a guide to the Tossing out a brick to get a jade gem, and it has implications for the development and the future of underground mine transportation.

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Liu, Chunde, Xianli Su, and Chuanwen Li. "Edge Computing for Data Anomaly Detection of Multi-Sensors in Underground Mining." Electronics 10, no. 3 (January 27, 2021): 302. http://dx.doi.org/10.3390/electronics10030302.

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There is a growing interest in safety warning of underground mining due to the huge threat being faced by those working in underground mining. Data acquisition of sensors based on Internet of Things (IoT) is currently the main method, but the data anomaly detection and analysis of multi-sensors is a challenging task: firstly, the data that are collected by different sensors of underground mining are heterogeneous; secondly, real-time is required for the data anomaly detection of safety warning. Currently, there are many anomaly detection methods, such as traditional clustering methods K-means and C-means. Meanwhile, Artificial Intelligence (AI) is widely used in data analysis and prediction. However, K-means and C-means cannot directly process heterogeneous data, and AI algorithms require equipment with high computing and storage capabilities. IoT equipment of underground mining cannot perform complex calculation due to the limitation of energy consumption. Therefore, many existing methods cannot be directly used for IoT applications in underground mining. In this paper, a multi-sensors data anomaly detection method based on edge computing is proposed. Firstly, an edge computing model is designed, and according to the computing capabilities of different types of devices, anomaly detection tasks are migrated to different edge devices, which solve the problem of insufficient computing capabilities of the devices. Secondly, according to the requirements of different anomaly detection tasks, edge anomaly detection algorithms for sensor nodes and sink nodes are designed respectively. Lastly, an experimental platform is built for performance comparison analysis, and the experimental results show that the proposed algorithm has better performance in anomaly detection accuracy, delay, and energy consumption.

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Ralston, J. C., D. W. Hainsworth, D. C. Reid, D. L. Anderson, and R. J. McPhee. "Recent advances in remote coal mining machine sensing, guidance, and teleoperation." Robotica 19, no. 5 (August 29, 2001): 513–26. http://dx.doi.org/10.1017/s0263574701003447.

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This paper presents some recent applications of sensing, guidance and telerobotic technology in the coal mining industry. Of special interest is the development of semi or fully autonomous systems to provide remote guidance and communications for coal mining equipment. We consider the use of radar and inertial based sensors in an attempt to solve the horizontal and lateral guidance problems associated with mining equipment automation. We also describe a novel teleoperated robot vehicle with unique communications capabilities, called the Numbat, which is used in underground mine safety and reconnaissance missions.

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Banerjee, Sumit. "Performance evaluation of continuous miner based underground mine operation system: An OEE based approach." New Trends in Production Engineering 2, no. 1 (October 1, 2019): 596–603. http://dx.doi.org/10.2478/ntpe-2019-0065.

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Abstract CM is a globally renowned machine, designed to work as a mass production technology for underground coal. Different major coal producers across the globe are using this technology for decades to produce underground coal efficiently. India is also one of the major players globally in the arena of coal production and adopted this cutting edge technology since last decade by implementing at. few of the selective underground coal mining projects. Performance of CM technology is influenced by the geo-mining condition, fleets of other ancillary units and reliability of subsystems while implementation of this system depends largely on the extent of reserve. These aspects generate a scope of large scale research and development in this field. Overall Equipment Effectiveness (OEE) is the parameter to benchmark the equipment performance globally. OEE is the product of equipment availability, performance and product quality. This mining machine based paper focuses on the Overall Equipment Effectiveness (OEE) of the complete CM based operation to identify the vulnerable systems, which helps to design proper preventive maintenance programme. The CM based system is divided into few subsystems, such as; electrical, cutter, gathering arrangement, traction, hydraulic, chassis, feeder breaker, shuttle car, CM conveyor and out-bye conveyor. The downtime data used for this analysis is collected from an underground coal mine situated in the central part of India, belongs to one leading coal producing company of the country. From analysis it was found that, electrical systems and conveyors are among most vulnerable systems and deserves more care during maintenance. On the basis of these results recommendations are made to redesign the Preventive Maintenance Programme, in order to avoid the lower availability as well as lower OEE.

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Ciofu, Cristian Florin. "Research on Accidental Defects to Bearings of Mining Equipment." Applied Mechanics and Materials 371 (August 2013): 700–704. http://dx.doi.org/10.4028/www.scientific.net/amm.371.700.

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By means of the material presented in this paper, we want to approach an unfavourable aspect frequently met in the surface mining exploitations of Oltenia coal basin. The excavation installations in these coal quarries are submitted to difficult work conditions: dust (fine mineral particles having the size of maximum 10μm or even less) [2], low temperatures (in winter-30°C), a corrosive atmosphere (acid underground waters, sulphates, gas resulted from coal extraction such as SOx generated when roasting the abscesses, the nitrates), etc.[2,6]. By the construction, both the marching mechanism and these articulations of the installation extensions are built on the concept of sliding bearing.

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Suroto, Jimmy Bob, Ramdhan Rabbani, Anas Abdul Latif, and Presentia Biserva Aesh. "Sistem Dewatering Air Panas Tambang Bawah Tanah Toguraci PT. Nusa Halmahera Minerals." Prosiding Temu Profesi Tahunan PERHAPI 1, no. 1 (August 31, 2019): 35–46. http://dx.doi.org/10.36986/ptptp.v0i0.4.

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The development of the Toguraci Underground Mine was begun in 2011 with the ore production started in 2012. The amount of water continued to increase in the Underground Mine at the beginning of 2014 which became problem that effected the activities of mining. The increase of hot water Toguraci underground mining effected to the safety for workers who are exposed to hot water, ventilation problems and equipment that are submerged in hot water. Tuguraci mine has two dewatering systems, namely dewatering systems on the surface and dewatering systems in underground mines. The handling of surface water comes from pumping underground to surface where water discharge is around 400 L / s with the temperatures ranging from 70°C while water treatment in underground mines includes decreasing water heading levels and pumping water from underground mines to the surface. The increase water entering heading development and stoping can be overcome by changing the surface dewatering system by using water cooling, while underground mining is done by changing the pipeline from the polypipe to the steel pipe and to reduce water entering the mining front is doned by drill holes for installing submersible pumps and replacing Oddesse pump to the Schlumberger pump which is more resistant to high temperature hot water, as long as mining operations take place 48 borehole drilling has been done with 11 borehole flowrate below 5 l / s and 37 borehole with flow rate above 5 l / s, and a water drop of around 77 meters

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Gonen, Alper. "Ventilation Requirements for Today's Mechanized Underground Metal Mines." International Journal of Advanced Research in Engineering 4, no. 1 (March 29, 2018): 7. http://dx.doi.org/10.24178/ijare.2018.4.1.07.

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Ventilation is a basic part of all underground mine operations. The main objective of underground mine ventilation is to provide sufficient quantities of air to all the working areas. Today, in modern mechanized underground metal mines, diesel-powered mobile equipment is extensively used for high production rates. Ore can be extracted from many production stopes due to the production rate in a mine. Amount of airflow required for an underground mine depends on several factors, including daily production capacity, number of diesel equipment, ambient temperature, mining method, mining depth and airway type. After implementation of Stage IV Emission Standards for nonroad diesel engines, it is getting more complex to determine airflow quantities required for underground mines wherefore reduced diesel emissions. Required amount of airflow for a mine is obtained by ventilation fans and the largest cost aspect in mine ventilation is the power costs of running the ventilation fans which can reach as high as 50 percent of a mine’s entire electrical power cost. The cost of electrical power has increased significantly in recent years and is likely to continue increasing in the future. That is why it is getting more important to determine proper ventilation design for underground metal mines.

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Li, Jing Zhao, and Hui Mei Deng. "Research on Coal Mining Material Active Perception System Based on IOT and Coal Resources." Applied Mechanics and Materials 252 (December 2012): 207–10. http://dx.doi.org/10.4028/www.scientific.net/amm.252.207.

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The framework of initiative coal mining system based on the perception layer of Internet of things (IOT), took the way of combination initiative acquisition, with timing and real time to implement “people, ring, and material” perception of the underground of coal mining is proposed. On this basis, coal mining material active perception system is designed. This system applies computer and IOT perception instead artificial operation in the current coal manufacturing equipment and material field. It is analyzed that design concepts of coal mining material active perception system, function and characteristics, system structure, information collecting, data synchronization and EPC coding of coal manufacturing equipment and material.

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Lyashenko, V. I., T. V. Chekushina, T. V. Dudar, and I. A. Lisovoy. "Environmental and Resource-Saving Technologies and Technical Equipment for Processing and Disposal of Man-General Formation and Waste." Ecology and Industry of Russia 25, no. 5 (May 12, 2021): 10–15. http://dx.doi.org/10.18412/1816-0395-2021-5-10-15.

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The substantiation of environmental and resource-saving technologies and technical means for the processing and disposal of man-made formations and waste from mining and metallurgical production into underground mined-out spaces (man-made voids) as components of hardening filling mixtures is given. This will ensure the safety of the day surface from destruction and the vital activity of the population living in the zone of influence of the mining region. It was found that for the mines of the State Enterprise "VostGOK" (Ukraine), the utilization rate of waste of own production for the hardening filling is from 0.45 to 0.68; hydraulic – from 0.56 to 0.75; free-flowing – 0.62, and the extraction of each ton of salable ore is accompanied by the output of 0.7–0.8 tons of waste. The research results can be used in underground mining of ore deposits of complex structure and mining and metallurgical production.

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GALIEV, Zhaken Kakitaevich. "The efficiency of the coal industry based on the factor of labor productivity growth." NEWS of the Ural State Mining University 1, no. 1 (March 23, 2020): 218–22. http://dx.doi.org/10.21440/2307-2091-2020-1-218-222.

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Relevance. Insufficiently high labor productivity at coal mining enterprises actualizes a study to increase the efficiency of their activities based on the factor of productivity growth. Purpose – substantiation of a possible increase in labor productivity with a change in the ratio of open and underground mining methods. Methodology – analysis of changes in labor intensity with various options for the share of open and underground development methods, as well as assuming an increase in production. Results. Issues of effective production and economic activity of coal industry enterprises are considered taking into account the factor of increasing labor productivity of workers. For the efficient functioning of coal mining enterprises, certain correlations should be fulfilled between the rates of change in the volume of coal production, labor productivity and the cost of coal production. Changes in coal production can be achieved mainly by the ratio of underground and open-cast mining. An approach to determining the level of labor intensity of work in the coal industry with a change in the ratio of underground and open coal mining methods is proposed; with a corresponding increase in labor productivity, the unit cost of production in the planning period is determined. The factors of growth of labor productivity in the coal industry are given: an increase in the utilization rate of combines for sewage treatment and bucket excavators for opencast mines; progressive changes in the design and operational characteristics of the main coal mining equipment; the use of imported equipment only in economically feasible mining conditions; the possibility of growth of stimulating factors to ensure the corresponding labor productivity of coal mining workers; increase in the share of coal from mines and opencasts with low cost of coal mining. Conclusions. The approach developed by the authors to determine the level of reduction in the labor intensity of work in the coal industry can be used in conditions of changing the ratio of open and underground mining methods, and accordingly, the change in the cost of production of one ton of coal as a whole for the joint-stock company can be forecasted.

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Golik, Vladimir, Yuriy Razorenov, Volodymyr Morkun, and Nataliia Morkun. "Simulation of deposit parameters in underground development mining." E3S Web of Conferences 60 (2018): 00029. http://dx.doi.org/10.1051/e3sconf/20186000029.

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The article is aimed at improving development mining to prepare an ore body for stoping by access ramps to provide comfortable conditions and high technical and economic indices in underground mining. Efficient parameters of underground mining are chosen in the course of simulating data on the mining theory and practice considering ore losses and dilution on the basis of critical analysis of uranium mining enterprises’ activities. The research provides data on geological and engineering zoning of an ore deposit and physical-mechanical properties of ore bearing rocks. The advanced experience is systemized and there is provided system analysis of modern development mining schemes with access ramps (ring, spiral, one-way inclined, central inclined and across the strike). The research recommends schemes of development mining and substantiates their advantages. There are quantitative indices of physical simulation of development variants as to drawn ore quality according to criteria of soil location in ore draw points. The scientific novelty implies developing the criterion of optimality and ranking variants of development mining according to technical-economic and geomechanical indices considering some technological factors as well as the number of stopes operating simultaneously on the level. The study consists in increasing authenticity of development projects through applying complex schemes of access ramps according to the complex criterion of increasing mining depths, equipment application, ventilation and underground mine capacity.

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Fedoruk, A. A., O. G. Drugova, and S. V. Martin. "Assessment of working conditions of workers in underground mining with varying degrees of mechanization of the process." Russian Journal of Occupational Health and Industrial Ecology, no. 9 (March 19, 2020): 789. http://dx.doi.org/10.31089/1026-9428-2019-59-9-789-790.

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The estimation of the levels of production factors with varying degrees of mechanization of underground mining processes. The introduction of self-propelled mining equipment leads to a decrease in the influence of some factors, but other factors appear, or the influence of existing ones is aggravated. In General, occupational risk remains high.

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Seccatore, Jacopo, Lorenzo Magny, and Giorgio De Tomi. "Technical and operational aspects of tunnel rounds in artisanal underground mining." Rem: Revista Escola de Minas 67, no. 3 (September 2014): 303–10. http://dx.doi.org/10.1590/s0370-44672014000300010.

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In the world today, due to the current high price of gold, thousands of artisanal small-scale mines operate without the financial or technical capacity to upgrade their production methods, often using equipment and working methods that were forsaken decades ago in the conventional mining industry. This article illustrates, with a practical example, that it is possible to achieve the modern requirements of quality, safety and productivity, while operating with mining equipment that basically possesses the same characteristics as that employed in the 1950s. The operation involved the excavation of a 6 meter long tunnel and over 25 stoping sections in both rock and concrete by drilling and blasting in an underground gold mine. The article describes how the main operational problems were overcome. An effective drilling pattern was designed in order to be easily achievable with the limited local equipment. The behavior of the local nitrate explosive was effectively predicted and managed. The interaction with the drilling teams was managed in order to determine a meeting point between their traditional working methods and the scientific view of the engineer. At the end of the article some general guidelines are proposed for the management of similar situations, in order to improve the efficiency, productivity and safety of drill and blast operations in small-scale mines.

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Dunn, Mark, Peter Reid, and John Malos. "Development of a Protective Enclosure for Remote Sensing Applications—Case Study: Laser Scanning in Underground Coal Mines." Resources 9, no. 5 (May 11, 2020): 56. http://dx.doi.org/10.3390/resources9050056.

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Sensing for equipment location and mapping in explosion risk zones such as underground coal mines is a difficult proposition due to the regulatory requirement for certified protective enclosures to safely house the required complex electrical equipment. This paper provides a case study for the process involved in creating and implementing an optical-grade enclosure for use in these environments. The result of this process has been the creation of ExScan®, a 3D laser mapping system that is providing step-change capability for remote operations and automation in the underground coal mining industry.

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Wołowiec, Tomasz. "CASING OF UNDERGROUND MINING AND REAL ESTATE TAX." International Journal of Legal Studies ( IJOLS ) 4, no. 2 (December 30, 2018): 244–56. http://dx.doi.org/10.5604/01.3001.0013.0018.

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To determine whether mining excavations are subject to real estate tax, it is necessary to determine their legal and tax status. The definition of "mining excavation" is specified in the Geological and Mining Act of 9 June 2011, with regard to the fact that this Act plays a fundamental role in regulating issues related to mineral extraction, it is not in dispute that the definition under consideration should be considered binding also on the basis of other normative acts, including the Construction Law. The purpose of the article is to analyze the taxation of underground mine workings with a real estate tax. Such a goal is based on the fact that statutory regulations are far from clear and precise. Irrespective of objectively existing difficulties, it seems possible to eliminate doubts regarding taxation of underground mining excavations and facilities and equipment located therein (including mining excavation housing) which requires proper use of the rules of interpretation adopted in Polish legal culture, in particular system rules in the vertical aspect, manifested by the so-called the technique of interpreting acts in accordance with the Constitution and functional rules.

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Jakkula, BalaRaju, Govindaraj Mandela, and Murthy Chivukula. "Improvement of overall equipment performance of underground mining machines- a case study." Modelling, Measurement and Control C 79, no. 1 (March 30, 2018): 6–11. http://dx.doi.org/10.18280/mmc_c.790102.

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Salama, A., J. Greberg, B. Skawina, and A. Gustafson. "Analyzing energy consumption and gas emissions of loading equipment in underground mining." CIM Journal 6, no. 4 (September 1, 2015): 179–88. http://dx.doi.org/10.15834/cimj.2015.24.

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Serdyukov, S. V., A. V. Azarov, P. A. Dergach, and A. A. Duchkov. "Equipment for microseismic monitoring of geodynamic processes in underground hard mineral mining." Journal of Mining Science 51, no. 3 (May 2015): 634–40. http://dx.doi.org/10.1134/s1062739115030291.

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BASU, A. J., and G. T. LINEBERRY. "SELECTION OF MOBILE EQUIPMENT FOR UNDERGROUND COAL MINING: AN EXPERT SYSTEM APPROACH." Mineral Resources Engineering 04, no. 01 (March 1995): 71–88. http://dx.doi.org/10.1142/s0950609895000060.

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Salama, Abubakary, Jenny Greberg, and Håkan Schunnesson. "The use of discrete event simulation for underground haulage mining equipment selection." International Journal of Mining and Mineral Engineering 5, no. 3 (2014): 256. http://dx.doi.org/10.1504/ijmme.2014.064486.

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Li, Jian-guo, and Kai Zhan. "Intelligent Mining Technology for an Underground Metal Mine Based on Unmanned Equipment." Engineering 4, no. 3 (June 2018): 381–91. http://dx.doi.org/10.1016/j.eng.2018.05.013.

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Grishin, Evgeniy L., Artem V. Zaitsev, and Evgeniy G. Kuzminykh. "Ensuring Occupational Safety and Health through Ventilation in Underground Mines with Internal Combustion Engine Vehicles on Duty." Вестник Пермского национального исследовательского политехнического университета. Геология. Нефтегазовое и горное дело 20, no. 3 (August 2020): 280–90. http://dx.doi.org/10.15593/2712-8008/2020.3.8.

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Increasing production capacities and developing ventilation systems in underground mines challenge mining enterprises to enhance the output level of applied mining and ventilation facilities. Most of the rock loading and transporting mining machinery at ore deposits is powered by diesel internal combustion engines. Insufficient ventilation or wrong approaches to determining the amount of air required to dilute the main components of exhaust gases from internal combustion engines, including carbon monoxide and nitrogen oxides, can result in poisoning or even death of mining workers. However, most production facilities make their ventilation systems operate at the capacity limits without any opportunities to increase their technical reserves. This fact has a direct impact on safety of mining operations. We present methods and equations aimed at determining the required air quantity for the operating areas of the vehicles equipped with internal combustion engines and the underground mines at their designing and operation stages. The analysis of regulatory documentation shows that there is no requirement to airflow rate per power unit of internal combustion engines. Therefore, we propose an approach that meets up-to-date industrial safety requirements based on the actual emissions of harmful components, performance parameters of internal combustion engines and emission standards guaranteed by manufacturers though confirming an engine’s emission class compliance. The proposed methods will allow us to enhance workplace safety at underground mines where internal combustion engine equipment is on duty, and to increase the efficiency of designing new blocks, horizons and mines by eliminating unreasonable reserves when selecting mining and ventilation equipment.

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Gao, Ming Tao, Ming Zhang, and Ming Zhou. "Study and Practice on the Technology of Filling Mining in Xin Wen Mining Area." Applied Mechanics and Materials 121-126 (October 2011): 2892–96. http://dx.doi.org/10.4028/www.scientific.net/amm.121-126.2892.

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Because of mine production, the open-pit enission of coal gangue solid waste and surface subsidence are one of important causes to failure the mining area land and environment, so the key technology, processes and equipment of filling mining to replace coal have been developed, which convergences the existing system of mining technology, And the stability theory of the control of filling mining rock movement and the method of surface subsidence prediction have been established, which provides a scientific basis for equipment Selection and the design of subsidence control; the key technologies of filling mining to replace coal is successfully applicated, which significantly improves the recovery rate of coal resources in China and constructs the new coordinated development model that is combined by the underground disposal of coal waste, mining subsidence control and the “under three”safe coal mining, through the above, the target of green mining and the coordinated development of mining social, economic and environmental will be achieved.

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Yermakova, Inna, and Vyacheslav Fedusov. "Analysis of Longwall Salvage Operations in JSC SUEK-Kuzbass Underground Mines." E3S Web of Conferences 105 (2019): 01049. http://dx.doi.org/10.1051/e3sconf/201910501049.

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The longwall coal mining method is the most productive mining method. However, the salvage operations which include the formation of the salvage chamber and the salvage of longwall face equipment require improvement. In 2011-2017, the time spent for salvage operations in SUEK-Kuzbass mines exceeded the standard time by more than 900 days. It has been established that the longwall face width from 230 to 300 m has no effect on the duration of salvage operations.

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Bobick, Thomas G., Richard L. Unger, and Ernest J. Conway. "Reducing Manual Materials Handling in Underground Coal Mining with Mechanical-Assist Devices." Proceedings of the Human Factors Society Annual Meeting 31, no. 4 (September 1987): 457–61. http://dx.doi.org/10.1177/154193128703100416.

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Historically, manual handling of materials has consistently accounted for over 25 pct of all industrial accidents. In underground coal mining, the situation is worse. Materials-handling accidents routinely account for 30 to 35 pct of all lost-time injuries. Research sponsored by the Bureau of Mines, U.S. Dept. of the Interior, and conducted by Essex/Canyon Research, Inc., developed and evaluated several mechanical-assist devices to reduce the manual effort and the corresponding risk of injury from handling supplies and equipment in underground coal mines. The prototype devices were supplied to cooperating coal mining companies for evaluation. On-site visits, task analyses, and interviews were used to evaluate the devices. Three of them performed exceptionally well and have shown promise for reducing the amount of manual lifting and handling required underground.

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Journal articles on the topic 'Underground mining equipment'

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