Academic literature on the topic 'Coal mines and mining – Zimbabwe'

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Journal articles on the topic "Coal mines and mining – Zimbabwe"

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Tyuleneva, Tatyana. "Improvement of production control of coal mining enterprises with underground mining method." E3S Web of Conferences 303 (2021): 01017. http://dx.doi.org/10.1051/e3sconf/202130301017.

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Production safety is one of the problems of competitiveness of underground mining enterprises, one manifestation of which is the reduction and minimization of the number of accidents and incidents of personal injury or even death. To solve this problem, it is necessary to improve the system of production control of coal mines in order to eliminate these factors. Relative indicators of accidents and injuries at underground coal mines of Russia in comparison with the average indicators are considered, and also importance of the human factor in the occurrence of dangerous production situations and the evaluation of their causes and effects are revealed. In addition, the article considers the most common violations of safety requirements for underground coal mining, analyzes the experience of foreign countries in improving the production control system, assesses the possibility of its application for improving production control at Russian coal mines, and determines main areas for implementing a risk-based approach at coal mining enterprises.
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Pirieva, Natalya, and Inna Ermakova. "Coal Pillars Safe Mining." E3S Web of Conferences 41 (2018): 01026. http://dx.doi.org/10.1051/e3sconf/20184101026.

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Safety pillars are the necessary objects for underground mining of coal seams. The having been mines; safety pillars, which include the development workings, lose their purpose. The coal reserves in these pillars are significant and can be mined. However, the pillars have fracture zones in the edges. The size of the fracture zones in the marginal parts of the pillars should be taken into account when choosing a mining system and its parameters. Coal pillar stress-strain analysis was carried out by the finite element method. The developed technique for coal pillar stress-strain analysis takes into account the post-critical strain of the coal seam edge. The reliability of the technique was verified by the experimental method. The calculated and experimental values differ insignificantly. The geomechanical condition of the nine safety pillars in A.D. Ruban mine of OJSC “SUEK-Kuzbass” was studied. The enterprise mines three low dip seams at a depth of up to 290 m. The amount of losses in fracture zones is defined for the pillars, which include slopes and entries. Fracture zones in the pillars were sized taking into account the actual structure of the seam roofs: the depth of bedding, their thickness and strength characteristics. The economic effect of mining of the safety pillars is pre-computed.
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Deng, Bao Ping, Shuai Liu, Chen Wang, Yao Dong Jiang, and Hong Wei Wang. "Numerical Investigation on Passing through Goaf in Coal Mine Failurezone." Applied Mechanics and Materials 275-277 (January 2013): 1518–24. http://dx.doi.org/10.4028/www.scientific.net/amm.275-277.1518.

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Random mining by small coal mines left many destruction districts with a large range in Fenxi mining district. According to incomplete statistics, the destroyed areas by small coal mines amount to nearly one hundred square kilometers and have over three hundred million tons of resource reserves in Xinliu, Xinyu and Xinyang these three fields. Small coal mines tend to use outdated techniques such as replacing mining with advancement, small excavation with large stoping and room pillar mining technique, which have a stoping rate of only 10% to 25%. Some of the wellheads were not closed seamlessly, which resulted in self-combustion; some were damaged due to the mining of the lower coal seam. A serious security risk existed during the mining of the lower coal seam due to the uncertainty of gas, water and roof pressure. In addition, the destructed area by small coal mines is badly large in Shanxi Province and even the whole country which remains a huge amount of resources. The implementation of this subject is significant.
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Chang, Qingliang, Jianhang Chen, Huaqiang Zhou, and Jianbiao Bai. "Implementation of Paste Backfill Mining Technology in Chinese Coal Mines." Scientific World Journal 2014 (2014): 1–8. http://dx.doi.org/10.1155/2014/821025.

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Implementation of clean mining technology at coal mines is crucial to protect the environment and maintain balance among energy resources, consumption, and ecology. After reviewing present coal clean mining technology, we introduce the technology principles and technological process of paste backfill mining in coal mines and discuss the components and features of backfill materials, the constitution of the backfill system, and the backfill process. Specific implementation of this technology and its application are analyzed for paste backfill mining in Daizhuang Coal Mine; a practical implementation shows that paste backfill mining can improve the safety and excavation rate of coal mining, which can effectively resolve surface subsidence problems caused by underground mining activities, by utilizing solid waste such as coal gangues as a resource. Therefore, paste backfill mining is an effective clean coal mining technology, which has widespread application.
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Sharma, Anjali, and Geeta Sumbali. "Ecobiology of coal mines and spoils." Journal of Applied and Natural Science 11, no. 3 (September 10, 2019): 624–31. http://dx.doi.org/10.31018/jans.v11i3.2130.

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Coal is an important non-renewable source of energy, which is being constantly used by mankind for various purposes. Coal mining activities affect the surrounding ecosystem by contaminating it with traces of toxic metals, which may accumulate and affect the diversity and abundance of biological communities. A number of microorganisms, such as, filamentous fungi, yeasts and bacteria are known to degrade coal by their enzymatic action and use it as the sole source of carbon. In addition, the indoor environments of coal mines possess bioaerosols, which may include living or dead allergens, pathogenic or non-pathogenic bacteria, fungi, viruses, mycotoxins, bacterial endotoxins, peptidoglycans, etc., that may cause skin, respiratory tract and other health problems. This article throws light on the impact of coal mining on the surrounding ecosystem, degradation of coal by the microbial inhabitants and their effects on the health of miners.
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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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Turner, G., R. J. Yelf, and P. J. Hatherly. "Coal mining applications of ground radar." Exploration Geophysics 20, no. 2 (1989): 165. http://dx.doi.org/10.1071/eg989165.

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Coal due to its low conductivity and high electromagnetic contrast with surrounding rocks is an attractive medium for study by ground radar. Results of trials in Australian coal mines show that ground radar can be a useful tool for horizon control, locating old underground workings and mapping geological structure both from the surface and within mine roadways.
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Dang, Phuong Thao, and Vu Chi Dang. "Mine Water Treatment in Hongai Coal Mines." E3S Web of Conferences 35 (2018): 01007. http://dx.doi.org/10.1051/e3sconf/20183501007.

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Acid mine drainage (AMD) is recognized as one of the most serious environmental problem associated with mining industry. Acid water, also known as acid mine drainage forms when iron sulfide minerals found in the rock of coal seams are exposed to oxidizing conditions in coal mining. Until 2009, mine drainage in Hongai coal mines was not treated, leading to harmful effects on humans, animals and aquatic ecosystem. This report has examined acid mine drainage problem and techniques for acid mine drainage treatment in Hongai coal mines. In addition, selection and criteria for the design of the treatment systems have been presented.
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Zhylinska, Оksana, Valery Balan, and Tatiana Petrovska. "COMPARATIVE ANALYSIS OF THE PROSPECTS OF UKRAINIAN COAL MINES BY THE COPRAS-G METHOD." Ekonomika 92, no. 4 (January 1, 2013): 100–113. http://dx.doi.org/10.15388/ekon.2013.0.2340.

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Abstract. The article covers the elaboration of a methodical toolkit of assessing the prospects of coal mines, which allows for the differentiation of enterprises by an integrated index of their prospects as regards mining and the geological conditions of each coal mine. Is proposed An algorithm for the coal mine prospects assessment, of containing the stages of selecting the characteristics of mining and geological conditions, the use of a multi-attribute assessment by the COPRAS-G interval data, and the rating of coal mines. A comparative analysis of the prospects, employing the COPRAS-G method, was tested on an the example of 14 coal mines of the Central district Donbass of Ukraine.Key words: comparative analysis, prospects, coal mines, multi-attribute assessment, imprecise data, COPRASG method, CEE
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Tkocz, Maria. "Efekty restrukturyzacji górnictwa węgla kamiennego w Polsce." Studies of the Industrial Geography Commission of the Polish Geographical Society 9 (January 1, 2006): 28–39. http://dx.doi.org/10.24917/20801653.9.3.

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This paper presents changes in the functioning of hard coal mining in Poland in the period of development of free market economy, i.e. after 1989. During this period some attempts were made to bring the coal mining to remunerativeness. Five programmes of coal mining restructuring were implemented. Their main aim was the reduction of excessive production capacities. 23 coal mains were closed down in the period 1989–2003, especially in the northern and eastern parts of the coal basin, which include the areas where coal exploitation was the longest and coal resources are located under considerably urbanised areas, often within safety pillars (Bytom, Chorzów, Gliwice, Zabrze, Będzin, Dąbrowa Górnicza, Sosnowiec). As a consequence, coal production fell from 177.4 million tonnes to 100.5 million tonnes and the employment decreased from 415.7 thousand to 135.7 thousand. An organisational structure is represented by three coal syndicates: Katowice Capital Group with 8 coal mines, Coal Campaign with 23 coal mines and Jastrzębie Coal Company with 5 coal mines.
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Dissertations / Theses on the topic "Coal mines and mining – Zimbabwe"

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Forrest, W. "The development of new coal mines." Thesis, University of Nottingham, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.378766.

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Harvey, Harvey Blevins Madison D. Soyini. "Mines-bodies a performance ethnography of Appalachian coal mining /." Chapel Hill, N.C. : University of North Carolina at Chapel Hill, 2006. http://dc.lib.unc.edu/u?/etd,187.

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Thesis (Ph. D.)--University of North Carolina at Chapel Hill, 2006.
Title from electronic title page (viewed Oct. 10, 2007). "... in partial fulfillment of the requirements for the degree of Doctor of Philosophy in the Department of Communication Studies (Performance Studies)." Discipline: Communication Studies; Department/School: Communication Studies.
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Meyer, Petrus C. "Feasibility of thin seam coal mining at Dorstfontein Coal Mine." Pretoria : [s.n.], 2003. http://upetd.up.ac.za/thesis/available/etd-09072005-113231/.

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Noppé, Mark Adrian. "Geological controls for coal exploration and mining." Thesis, Rhodes University, 1992. http://hdl.handle.net/10962/d1005566.

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The identification and interpretation of geological features is essential for the planning and ultimate success of any mining venture. Examples of geological features significant for mining are presented, and their identification during exploration discussed. In particular, the importance of coal qualities, seam thickness and seam elevation are emphasised in relation to longwall mining. Geostatistical analysis provides a powerful tool for improving the prediction and decision-making capabilities of both exploration and mine geologists. The availability of geostatistics, and the benefits resulting from its application, are demonstrated using actual data for calorific value, seam thickness and seam elevation. Contamination of run-of-mine coal is a common problem on highly-mechanised collieries. The problem generally arises from over-cutting of the designated mining horizon. A practical system for monitoring and controlling contamination on a mechanised bord-and-pillar and longwall colliery is presented. The results and benefits of applying such a system are cited for an actual longwall colliery. Numerical geological predictions are not always reported in terms of the reliability of such estimates. Many of these values can be reported in terms of confidence limits, particularly for routine grade control purposes. The methods and benefits of such reporting are described and illustrated by way of examples for calorific value and contamination levels.
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Brendliner, Robert Lee. "Toxicity analysis of coal mining industry NPDES discharges in Southwest Virginia /." This resource online, 1991. http://scholar.lib.vt.edu/theses/available/etd-01122010-020036/.

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Griffin, Kenneth R. "Design Criteria for Wireless Mesh Communications in Underground Coal Mines." Thesis, Virginia Tech, 2009. http://hdl.handle.net/10919/76759.

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The Mine Improvement and New Emergency Response (MINER) Act of 2006 was enacted in response to several coal mining accidents that occurred in the beginning of 2006. The MINER Act does not just require underground mines to integrate wireless communication and tracking systems, but aims to overall enhance health and safety in mining at both surface and underground operations. In 2006, the underground communication technologies available to the mining industry had inherent problems that limited communication capabilities. Since the passage of the MINER Act, there have been several developing applications for underground wireless communications. Underground wireless communications allow signals to propagate and take multiple paths to destinations providing a survivable, redundant, and adaptable means of communication and tracking. An underground wireless communications allow underground and surface personnel to directly correspond to one another without being as restricted as hardwired systems. Communication systems also allow miners to be tracked underground to provide a real-time or last known post-accident position, and ensure a more efficient rescue operation. In order to increase the overall efficiency of developing communication systems there is a need for modeling of wireless signal propagation in underground mines. Research, modeling, and analysis of wireless signal propagation in underground mines ongoing and developing with underground communications systems as the systems progress. The work on this project is based upon the Accolade system from L-3 Communications Global Security and Engineering Solutions but applies to all underground wireless mesh systems currently available. A general approach is taken to solving underground wireless communications networks to allow the design criteria to be adaptable to other communication systems belong the Accolade system. The data is based upon measurements and field work that took place July 2007 through December 2008 in International Coal Group's Sentinel Mine in Philippi, West Virginia. Comms, a computer method developed at the Virginia Center for Coal and Energy Research at Virginia Tech, allows underground mine communication networks to be solved and analyzed. Comms was developed to solve and analyze underground wireless communication networks. The method which Comms solves communication networks is not mine specific and may be adapted to predict the performance of a system(s) in another mine. The developed model discussed in Chapters 3 and 4 highlights the general signal loss parameters that are encountered by wireless signals in a mine. The model predicted the signal strength observed when encountering those categorized signal losses within 16 percent of the data measured during a mine survey. The model has been developed in a general manner to allow future investigation and pinpointing of additional interferences that occur within the underground environment. Wireless communications have proven to be the way of the future and will continue to be integrated into underground coal mines as mandated by the MINER Act. Wireless communications systems are a redundant and survivable means of communication that will be utilized in not only emergency and rescue efforts but daily operational communication as well.
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Sellami, Moncef. "Recoverable reserve estimation in multiple seam mines." Thesis, This resource online, 1993. http://scholar.lib.vt.edu/theses/available/etd-09192009-040606/.

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Roy, Mimi. "A detailed sequential extraction study of selenium in coal and coal-associated strata from a coal mine in West Virginia." Morgantown, W. Va. : [West Virginia University Libraries], 2005. https://eidr.wvu.edu/etd/documentdata.eTD?documentid=4431.

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Thesis (M.S.)--West Virginia University, 2005.
Title from document title page. Document formatted into pages; contains x, 93 p. : ill. (some col.), map (part col.). Vita. Includes abstract. Includes bibliographical references (p. 75-78).
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Meyer, Petrus Cornelius. "Feasibility of thin seam coal mining at Dorstfontein Coal Mine." Diss., University of Pretoria, 2003. http://hdl.handle.net/2263/27806.

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Young-On, Harold. "An economic evaluation of backfilling in Virginia's coal mines." Thesis, This resource online, 1990. http://scholar.lib.vt.edu/theses/available/etd-02132009-172231/.

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Books on the topic "Coal mines and mining – Zimbabwe"

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Coal mining. Princes Risborough, Buckinghamshire: Shire Publications, 2000.

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Dyer, Peter. Coal mines of Puponga. Picton, N.Z: October Enterprises t/a River Press, 2003.

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Bartholomew, D. S. Gold deposits of Zimbabwe. Harare: Zimbabwe Geological Survey, 1990.

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Paździora, Józef. Design of underground hard-coal mines. Amsterdam [Netherlands]: Elsevier, 1988.

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Crowell, Douglas L. Coal. [Columbus, Ohio]: Division of Geological Survey, 1998.

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Stewart, James J. Coal extraction. Hauppauge, N.Y: Nova Science Publisher's, 2010.

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India. Manual of mines & mineral: Along with coal mines legislation. Allahabad: National Law Agency, 1990.

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Jackson, Lindsey J. Surface coal mines - restoration and rehabilitation. London: IEA Coal Research, 1991.

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Energy, Mines and Resources Canada. Canada Centre for Mineral and Energy Technology. Coal mining in Canada, 1986. Ottawa: Energy, Mines and Resources Canada., 1987.

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1953-, Leach John, ed. The coal mines of Buxton. Cromford: Scarthin, 1985.

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Book chapters on the topic "Coal mines and mining – Zimbabwe"

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Tomasi, Luca. "From coal mines to text mining." In Multilingual Perspectives from Europe and Beyond on Language Policy and Practice, 110–34. London: Routledge, 2021. http://dx.doi.org/10.4324/9780429351075-9.

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Sengupta, Mritunjoy. "The Acid Mine Drainage Problem from Coal Mines." In Environmental Impacts of Mining, 101–36. 2nd ed. Second edition. | Boca Raton, FL : CRC Press, 2021.: CRC Press, 2021. http://dx.doi.org/10.1201/9781003164012-4.

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Bollinger, G. A. "Microearthquake Activity Associated with Underground Coal-Mining in Buchanan County, Virginia, U.S.A." In Seismicity in Mines, 407–13. Basel: Birkhäuser Basel, 1989. http://dx.doi.org/10.1007/978-3-0348-9270-4_8.

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Janusz, Andrzej, Marek Sikora, Łukasz Wróbel, Sebastian Stawicki, Marek Grzegorowski, Piotr Wojtas, and Dominik Ślęzak. "Mining Data from Coal Mines: IJCRS’15 Data Challenge." In Lecture Notes in Computer Science, 429–38. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-25783-9_38.

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Pradhan, G. K., Om Prakash, and N. R. Thote. "Blast Free Mining in Indian Surface Coal Mines – Current Trend." In Mine Planning and Equipment Selection, 335–57. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-02678-7_34.

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Hu, Zhenqi, Wu Xiao, and Yanhua Fu. "Introduction to Concurrent Mining and Reclamation for Coal Mines in China." In Mine Planning and Equipment Selection, 781–89. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-02678-7_76.

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Chałupnik, Stanislaw, and Małgorzata Wysocka. "Changes of radium concentration in discharge waters from coal mines in Poland as a result of mitigation." In Uranium, Mining and Hydrogeology, 839–50. Berlin, Heidelberg: Springer Berlin Heidelberg, 2008. http://dx.doi.org/10.1007/978-3-540-87746-2_110.

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Kachurin, Nikolai M., Sergey A. Vorobev, and Pavel V. Vasilev. "ABANDONED COAL MINES INFLUENCE ON ATMOSPHERE, ENVIRONMENTAL MONITORING OF COAL MINING AND PROCESSING TERRITORIES AND PREVENTIVE MEASURES RESOURCES OPTIMIZING." In XVIII International Coal Preparation Congress, 609–14. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-40943-6_93.

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Edyta, Brzychczy. "A New Solution Supporting the Designing Process of Mining Operations in Underground Coal Mines." In Mine Planning and Equipment Selection, 53–63. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-02678-7_6.

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"Mechanical Excavation in Coal Mines." In Mechanical Excavation in Mining and Civil Industries, 307–22. CRC Press, 2013. http://dx.doi.org/10.1201/b16083-15.

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Conference papers on the topic "Coal mines and mining – Zimbabwe"

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van Duin, Stephen, Luke Meers, and Gary Gibson. "Hard Automation Trends in Australian Underground Coal Mines." In 30th International Symposium on Automation and Robotics in Construction and Mining; Held in conjunction with the 23rd World Mining Congress. International Association for Automation and Robotics in Construction (IAARC), 2013. http://dx.doi.org/10.22260/isarc2013/0016.

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Gibesova, Beata. "REDUCING DANGER OF COAL DUST IN COAL MINES IN CZECH REPUBLIC." In 13th SGEM GeoConference on SCIENCE AND TECHNOLOGIES IN GEOLOGY, EXPLORATION AND MINING. Stef92 Technology, 2013. http://dx.doi.org/10.5593/sgem2013/ba1.v1/s03.054.

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Xu, T., Chunan Tang, Wancheng Zhu, Tianhong Yang, and Jishan Liu. "Numerical Simulation of Instantaneous Outbursts in Underground Coal Mining." In Sixth International Symposium on Rockburst and Seismicity in Mines. Australian Centre for Geomechanics, Perth, 2005. http://dx.doi.org/10.36487/acg_repo/574_53.

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Chen, Huichao, Onder Kimyon, H. Lamei Ramandi, Bruce Hebblewhite, M. Manefield, Alan Crosky, Serkan Saydam, Anna Kaksonen, and Christina Morris. "Microbiologically induced cable bolt corrosion in underground coal mines." In Ninth International Symposium on Ground Support in Mining and Underground Construction. Australian Centre for Geomechanics, Perth, 2019. http://dx.doi.org/10.36487/acg_rep/1925_30_chen.

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Vuckovic, Bogoljub. "SULFUR IN LIGNITES OF KOLUBARA COAL MINES (KCM) � ENVIRONMENTAL FRIENDLY?" In 13th SGEM GeoConference on SCIENCE AND TECHNOLOGIES IN GEOLOGY, EXPLORATION AND MINING. Stef92 Technology, 2013. http://dx.doi.org/10.5593/sgem2013/ba1.v1/s03.069.

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Young, Kathryn, Adrienna Robotham, and Gurshaan Virk. "Economic consequences of geotechnical instabilities in open cut coal mines." In 2020 International Symposium on Slope Stability in Open Pit Mining and Civil Engineering. Australian Centre for Geomechanics, Perth, 2020. http://dx.doi.org/10.36487/acg_repo/2025_04.

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Manevski, Vladimir. "MODELS OF GEO-ELECTRICAL SOUNDING CHARACTERISTIC FOR COAL MINES (R. MACEDONIA)." In 13th SGEM GeoConference on SCIENCE AND TECHNOLOGIES IN GEOLOGY, EXPLORATION AND MINING. Stef92 Technology, 2013. http://dx.doi.org/10.5593/sgem2013/ba1.v2/s05.020.

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Brodny, Jaroslaw. "STORAGE OF CARBON DIOXIDE IN LIQUIDATED MINING HEADINGS OF ABANDONED COAL MINES." In 17th International Multidisciplinary Scientific GeoConference SGEM2017. Stef92 Technology, 2017. http://dx.doi.org/10.5593/sgem2017h/43/s19.063.

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Namazi, Samira, Ljiljana Brankovic, Behdad Moghtaderi, and Jafar Zanganeh. "Comparative Study of Data Mining Techniques for Predicting Explosions in Coal Mines." In 2020 10th International Conference on Cloud Computing, Data Science & Engineering (Confluence). IEEE, 2020. http://dx.doi.org/10.1109/confluence47617.2020.9057921.

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Bukowski, Przemyslaw. "CHANGES IN THE STRUCTURE OF WATER INFLOW INTO COAL MINES IN POLAND." In 13th SGEM GeoConference on SCIENCE AND TECHNOLOGIES IN GEOLOGY, EXPLORATION AND MINING. Stef92 Technology, 2013. http://dx.doi.org/10.5593/sgem2013/ba1.v2/s02.004.

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Reports on the topic "Coal mines and mining – Zimbabwe"

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Effects of mining height on injury rates in U.S. underground nonlongwall bituminous coal mines. U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, November 1997. http://dx.doi.org/10.26616/nioshpub98104.

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Maps showing the extent of mining, locations of mine shafts, adits, air shafts, and bedrock faults, and thickness of overburden above abandoned coal mines in the Boulder-Weld coal field, Boulder, Weld, and Adams counties, Colorado. US Geological Survey, 2001. http://dx.doi.org/10.3133/i2735.

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