Journal articles: 'Mine closure'

1

SZWEDZICKI, TAD. "PROGRAM FOR MINE CLOSURE." Mineral Resources Engineering 10, no. 03 (September 2001): 347–64. http://dx.doi.org/10.1142/s0950609801000701.

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Letient, Henri, Rob Marsland, Marco Marticorena, and Harvey McLeod. "MINE CLOSURE PLANNING IN PERU." Journal American Society of Mining and Reclamation 2006, no. 2 (June 30, 2006): 1051–64. http://dx.doi.org/10.21000/jasmr06021051.

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Walker, William J., Dan Wanket, and Alberto Pujol. "THE SPENCEVILLE COPPER MINE CLOSURE." Journal American Society of Mining and Reclamation 2016, no. 1 (May 27, 2016): 147–66. http://dx.doi.org/10.21000/jasmr16010147.

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Lima, Hernani Mota de, Flávio Luiz da Costa, Robson Peixoto, and Valdecy Caldeira. "Financial guarantee for mine closure." Rem: Revista Escola de Minas 56, no. 3 (July 2003): 181–86. http://dx.doi.org/10.1590/s0370-44672003000300006.

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This paper deals with the determination of the amount of a closure guarantee, the most common financial instruments available to the mining companies to satisfy the regulatory agencies' current and anticipated requirements, characteristics, advantages and disadvantages pertaining to these instruments as well as the problems faced by mining companies and governments to implement such instruments.

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Bond, N. A. J., and Uddin P.E. "Detroit salt mine closure design." International Journal of Rock Mechanics and Mining Sciences 34, no. 3-4 (April 1997): 35.e1–35.e12. http://dx.doi.org/10.1016/s1365-1609(97)00107-x.

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Smith, F. W., and B. Underwood. "Mine closure: the environmental challenge." Mining Technology 109, no. 3 (December 2000): 202–9. http://dx.doi.org/10.1179/mnt.2000.109.3.202.

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Miller, S. H., D. Van Zyl, G. R. Burns, and K. Markkola. "Hard-Rock Mine Closure Case Study - Cyprus Copperstone Mine." Journal American Society of Mining and Reclamation 1994, no. 2 (1994): 2–11. http://dx.doi.org/10.21000/jasmr94020002.

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Brady, Christopher, Peter Christophersen, and Justin O'Brien. "Incorporating Indigenous knowledge in mine closure: Ranger Uranium Mine." Proceedings of the Royal Society of Victoria 133, no. 1 (2021): 18. http://dx.doi.org/10.1071/rs21003.

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The Ranger Project Area, located on the lands of the Mirarr clan, is surrounded by Kakadu National Park. After 40 years of uranium production at Ranger Mine, rehabilitation has begun, with a commitment that the land will be restored to a standard such that it could be incorporated into Kakadu National Park. Historically, mine closure has not been done well in the Northern Territory, and little if any consideration has been given to the views of Aboriginal landowners. An Aboriginal perspective of country recognises the interrelationship, via local kinship and moiety systems, of all things – the rocks, plants, animals, people, stories, weather, ceremonies and tradition. There is an opportunity for this worldview to be incorporated into the rehabilitation of Ranger Mine. The mine’s operator ERA (a subsidiary of Rio Tinto) has agreed to Cultural Closure Criteria that reflect a desire of Bininj (Aboriginal people from the region) to again use the land for hunting and gathering, recreation and cultural practice. Allowing Aboriginal people to have input to rehabilitation planning demonstrates a respect for people’s knowledge and connection to country. At Ranger, where the mine was imposed against the wishes of the traditional owners, this is an important step in a return to stewardship of this land and reconnecting people to place.

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Castro, Maíra Fonseca Moreira, Hernani Mota de Lima, and José Cruz do Carmo Flôres. "Overview of mine closure in Minas Gerais, Brazil." Rem: Revista Escola de Minas 64, no. 2 (June 2011): 205–11. http://dx.doi.org/10.1590/s0370-44672011000200012.

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Despite closure regulations being recent in Brazil, many mining companies are attempting to adopt best practice and are facing the challenge of closing their mines properly instead of simply complying with current legislation or abandoning the mine site. This paper summarizes mine closure according to both the Brazilian legislation and the "Deliberação Normativa" COPAM Nº 127, that establishes the directives and procedures for environmental assessment at the mine closure stage. Even with the lack of laws and regulations addressing mine closure, the Brazilian mining industry today is at the forefront of environmental impact minimisation techniques. Some case studies in Minas Gerais State, two of them located in the Iron Quadrangle, provide excellent evidence of the industry's rehabilitation expertise. This paper presents an overview of mine closure legislation in Brazil and in the State of Minas Gerais and gives some examples of mine closure programmes in effect. It is intended to highlight the changes on mine closure requirements as well as the best practices on mine closure in the State.

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Robb, Gordon A. "Environmental Consequences of Coal Mine Closure." Geographical Journal 160, no. 1 (March 1994): 33. http://dx.doi.org/10.2307/3060139.

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Dvořáček, Jaroslav, Viliam Bauer, Radmila Sousedíková, Simona Matušková, and Adriana Csikósová. "Mine closure and resuming production options." Resources Policy 74 (December 2021): 102323. http://dx.doi.org/10.1016/j.resourpol.2021.102323.

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Ananta Firdaus, Muhammad. "Mine Closure Implementation in South Kalimantan." Scholars International Journal of Law, Crime and Justice 03, no. 01 (January 15, 2020): 1–7. http://dx.doi.org/10.36348/sijlcj.2020.v03i01.001.

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13

Laurence, David. "Optimisation of the mine closure process." Journal of Cleaner Production 14, no. 3-4 (January 2006): 285–98. http://dx.doi.org/10.1016/j.jclepro.2004.04.011.

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14

Roberts, Stephen. "Achieving Sustainable Mine Closure: Reclaiming a Mine in British Columbia, Canada." International Journal of the Humanities: Annual Review 3, no. 8 (2006): 51–60. http://dx.doi.org/10.18848/1447-9508/cgp/v03i08/41771.

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Jesus, Camila K. Conegundes de, and Luis Enrique Sánchez. "The long post-closure period of a kaolin mine." Rem: Revista Escola de Minas 66, no. 3 (September 2013): 363–68. http://dx.doi.org/10.1590/s0370-44672013000300014.

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Aiming at deriving good practice recommendations for mine closure, this paper reviews the case of a kaolin mine whose production ceased more than ten years ago, but as yet didn't meet its completion criteria. Document review, interviews and site visits showed that: (i) rework was needed to satisfactorily implement land rehabilitation measures such as contouring, slope stabilization, erosion and sediment control and revegetation; (ii) underground water quality was affected during mine operation, causing the mine to be included in the State contaminated sites register. Despite being a small operation, the closure of this mine illustrates a number of problems faced by mining companies in planning and implementing mine closure measures: (1) lack of clear land rehabilitation objectives; (2) the need to manage liabilities related to contaminated sites; (3) loss of organizational memory. The research found that good practices, generally recommended in guidebooks, were not adopted by the company. The main lesson from this relatively simple case - a small mine situated near a dynamic and expanding urban area - are that decommissioning and closure cannot be a makeshift add-on to mine management; these are not trivial activities and require careful planning and integration with mine planning itself.

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Zhang, Bang Hua, and Yue Tong Xu. "Analyzing Ecological Environmental Effect of Coal Mine Closure." Applied Mechanics and Materials 209-211 (October 2012): 1183–89. http://dx.doi.org/10.4028/www.scientific.net/amm.209-211.1183.

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By means of reading literature, field survey, laboratory test and contrast study, the inevitability and seriousness of coal mine closure was summarized and the ecological environmental effects of coal mine closure especially of coal mine closure with underground mining were analyzed. Ecological environmental effects include water-environmental effects, atmospheric environmental effects, soil-environmental effects and the effects to land use and land cover changes.

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Eger, Paul, Glenn Melchert, and Jon Wagner. "MINE CLOSURE - CAN PASSIVE TREATMENT BE SUCCESSFUL?" Journal American Society of Mining and Reclamation 1998, no. 1 (1998): 263–71. http://dx.doi.org/10.21000/jasmr98010263.

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Kahn, James R., Dina Franceschi, Adilson Curi, and Eduardo Vale. "Economic and financial aspects of mine closure." Natural Resources Forum 25, no. 4 (November 2001): 265–74. http://dx.doi.org/10.1111/j.1477-8947.2001.tb00768.x.

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19

Warhurst, Alyson, Magnus Macfarlane, and Geoff Wood. "Planning for mine closure: Socio‐economic impacts." Minerals & Energy - Raw Materials Report 14, no. 3 (January 1999): 21–26. http://dx.doi.org/10.1080/14041049909362535.

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20

Cehlár, Michal, Juraj Janočko, Zuzana Šimková, Tomas Pavlik, Maxim Tyulenev, Sergey Zhironkin, and Magerram Gasanov. "Mine Sited after Mine Activity: The Brownfields Methodology and Kuzbass Coal Mining Case." Resources 8, no. 1 (January 17, 2019): 21. http://dx.doi.org/10.3390/resources8010021.

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Operating life of a mine lasts from a few years to several decades. Mine closure occurs once the mineral resource is exhausted, or operations are no longer profitable. Mine closure plans are required by most regulatory agencies worldwide before a mining closure permission is granted, and must demonstrate that the site will not pose a threat to the environment and health of the society in future. The article describes a new tool, the brownfields methodology, which can help to promote the revitalization of old mining areas as a part of their technological modernization and subsoil full extraction with environmental damage reduction.

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21

Stemke, Marion, and Georg Wieber. "Closure of German Hard Coal Mines: Effects and Legal Aspects of Mine Flooding." Mine Water and the Environment 41, no. 1 (December 18, 2021): 280–91. http://dx.doi.org/10.1007/s10230-021-00842-7.

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AbstractFollowing the closure of the last hard coal mines in Germany, pumping is no longer necessary. However, the resulting rise of mine water can affect the environment. Laws have been enacted at the European and national level to protect properties. Within the framework of the approval procedure, it must be determined whether the cessation of pumping may cause unacceptable effects, including water pollution. With regard to water protection, the European Union has issued the Water Framework and Groundwater Directives, which have been implemented into German national law. These contain the prohibition of deterioration and the requirement for improvement, with the aim of maintaining or achieving good ecological and chemical status. However, before the target mine water level is reached, the water does not need to comply, since although the pumps are switched off, no mine water is being discharged. This also rules out permit requirements, which only go into effect when the target mine water level has been reached and mine water is discharging. Obviously, however, detailed planning before then is necessary.

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22

Ghose, Mrinal K. "Rehabilitation & revegetation strategies for degraded mine land for sustainable mine closure." Land Contamination & Reclamation 12, no. 4 (October 1, 2004): 363–78. http://dx.doi.org/10.2462/09670513.632.

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23

Ackerman, M., G. van der Waldt, and D. Botha. "Mitigating the socio-economic consequences of mine closure." Journal of the Southern African Institute of Mining and Metallurgy 118, no. 4 (2018): 439–47. http://dx.doi.org/10.17159/2411-9717/2018/v118n4a14.

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24

LAURENCE, D. "CLASSIFICATION OF RISK FACTORS ASSOCIATED WITH MINE CLOSURE." Mineral Resources Engineering 10, no. 03 (September 2001): 315–31. http://dx.doi.org/10.1142/s0950609801000683.

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25

Sabanov, Sergei, Jyri Rivaldo Pastarus, and Julia Shommet. "Sustainability Assessment Methods In Oil Shale Mine Closure." Environment. Technology. Resources. Proceedings of the International Scientific and Practical Conference 1 (August 5, 2015): 271. http://dx.doi.org/10.17770/etr2011vol1.918.

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The post mining processes impacts on the environment, economy and people, whilst there may be positive contributions to the economy and social progress through mining there may also are negative impacts to the environment. The aim of this study is to elaborate sustainability assessment methodologies suitable for mine closure life cycle stage which allows defining hazardous influences on environment, society and economic dimensions, and helps quickly, conveniently and qualitatively solve, operate, find optimum variants for existing problems. The sustainability assessment methods will provides best decisions on the technological and post technological processes of a mining industry and can be used in the exploration, planning, exploitation and closure stages.

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26

Kleinmann, Bob. "Book Review—Mine Pit Lakes: Closure and Management." Mine Water and the Environment 31, no. 1 (February 12, 2012): 79–80. http://dx.doi.org/10.1007/s10230-012-0174-8.

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27

Reinsalu, E. "CHANGES IN MINE DEWATERING AFTER THE CLOSURE OF EXHAUSTED OIL SHALE MINES." Oil Shale 22, no. 3 (2005): 261. http://dx.doi.org/10.3176/oil.2005.3.02.

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Lee, Kwangpyo, and Jaedong Kim. "Development of an Evaluation Module for Determining Mine Closure on Domestic Limestone Mine." Journal of the Korean Society of Mineral and Energy Resources Engineers 52, no. 2 (April 1, 2015): 193–207. http://dx.doi.org/10.12972/ksmer.2015.52.2.193.

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29

Johnstone, A. C. "Are pit lakes an environmentally sustainable closure option for opencast coal mines?" Journal of the Southern African Institute of Mining and Metallurgy 121, no. 10 (November 23, 2021): 1–5. http://dx.doi.org/10.17159/2411-9717/1551/2021.

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The aim of the study is to determine if pit lakes are a sustainable coal mine closure option in South African. The water balance, chemistry, limnology, and bacterial population of three selected pit lakes were investigated. The lakes are in the three major coal basins of South Africa and are associated with different lithologies and mining methods. The major factors driving the water balance of the pit lakes are direct rainfall, runoff, inflow from old mine workings, and groundwater infiltration, with the major losses being evaporation or discharge onto surface. The study indicated that pit lakes can be designed as 'terminal sinks' to provide a sustainable mine closure option. The pit lakes sampled have an alkaline pH, and mostly a sodium/calcium sulphate water with total dissolved solids content of less than 3000 mg/l. The phytoplankton and microbiological data indicates that the pit lakes support aquatic life. The study shows that correctly designed pit lakes can be an environmentally sustainable closure option for South Africa's coal mines. A suggested design manual has been developed to assist mine owners and regulators in developing sustainable coal mine pit lakes as a closure option.

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Sadovenko, I., V. Bondarenko, I. Salieiev, and A. Zagrytsenko. "Substantination of hydromechanical parameters of water regulation using mine pillars during mines closure." Collection of Research Papers of the National Mining University 64 (2021): 55–67. http://dx.doi.org/10.33271/crpnmu/64.055.

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Purpose. Substantiation of hydromechanical parameters that make it possible to control the safe ratio of hydrodynamic levels in a mine shaft and a rock mass when closing mines using submersible pumps. Research methodology. An experimental-analytical method was used, which consists in the formation and analysis of data from field tests of fractured porosity, permeability and the position of groundwater levels in hard sandstones around mine shafts with concrete support. Research results. It has been established that the hydromechanical state around a mine shaft in stable water-bearing rocks is characterized by the development of mutually competing processes of nonlinear decrease in the permeability of the loaded rock contour and hydrogeomechanical unloading of structural elements of water-bearing rocks and filter attachment. The values of the hydrogeomechanical unloading of the shaft attachment in the range of 0.054 - 6.125105 Pa are close to the tensile strength limit of the "concrete-water-bearing rock" contact, which indicates the danger of its collapse. Scientific novelty. The problem of combining the elastic viscometric load of the rock mass attachment and the hydrodynamic planar-radial flow to the wellbore is solved, where the hydrogeomechanical state in stable water-bearing rocks is characterized by the development of mutually competing processes of nonlinear decrease in the permeability of the loaded rock contour and hydrostatic unloading of structural elements of the water-bearing rocks and filters. Practical value. The obtained solutions and their analysis explain the discrepancy between the calculated (standard) loads on the fastening, which is known from practical experience, and actually measurable values, and also have significant practical significance. The established fact of the approximation of the value of hydrogeomechanical unloading of the stovol attachment to the tensile strength of the contact "concrete - water-bearing rock" is dubious and requires a decrease in the hydrodynamic deflection to the mine stovol when controlling the process of flooding with submersible pumps.

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Sarkar, Amit. "Mine closure plan and policy for open cast coal mine of raniganj coalfield, India." Asian Journal of Research in Social Sciences and Humanities 7, no. 7 (2017): 35. http://dx.doi.org/10.5958/2249-7315.2017.00363.x.

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McCullough, Cherie, Martin Schultze, and Jerry Vandenberg. "Realizing Beneficial End Uses from Abandoned Pit Lakes." Minerals 10, no. 2 (February 2, 2020): 133. http://dx.doi.org/10.3390/min10020133.

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Pit lakes can represent significant liabilities at mine closure. However, depending upon certain characteristics of which water quality is key, pit lakes often also present opportunities to provide significant regional benefit and address residual closure risks of both their own and overall project closure and even offset the environmental costs of mining by creating new end uses. These opportunities are widely dependent on water quality, slope stability, and safety issues. Unfortunately, many pit lakes have continued to be abandoned without repurposing for an end use. We reviewed published pit lake repurposing case studies of abandoned mine pit lakes. Beneficial end use type and outcome varied depending upon climate and commodity, but equally important were social and political dynamics that manifest as mining company commitments or regulatory requirements. Many end uses have been realized: passive and active recreation, nature conservation, fishery and aquaculture, drinking and industrial water storage, greenhouse carbon fixation, flood protection and waterway remediation, disposal of mine and other waste, mine water treatment and containment, and education and research. Common attributes and reasons that led to successful repurposing of abandoned pit lakes as beneficial end uses are discussed. Recommendations are given for all stages of mine closure planning to prevent pit lake abandonment and to achieve successful pit lake closure with beneficial end uses.

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Flatley, Alissa, and Andy Markham. "Establishing effective mine closure criteria for river diversion channels." Journal of Environmental Management 287 (June 2021): 112287. http://dx.doi.org/10.1016/j.jenvman.2021.112287.

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Marais, Lochner, and Anri de Lange. "Anticipating and planning for mine closure in South Africa." Futures 125 (January 2021): 102669. http://dx.doi.org/10.1016/j.futures.2020.102669.

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Vervoort, André, and Pierre-Yves Declercq. "Surface movement above old coal longwalls after mine closure." International Journal of Mining Science and Technology 27, no. 3 (May 2017): 481–90. http://dx.doi.org/10.1016/j.ijmst.2017.03.007.

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Marais, Lochner, and Jan Cloete. "Labour migration, settlement and mine closure in South Africa." Geography 98, no. 2 (July 1, 2013): 77–84. http://dx.doi.org/10.1080/00167487.2013.12094371.

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Acquah, P. C., and A. Boateng. "Planning for mine closure: Some case studies in Ghana." Minerals & Energy - Raw Materials Report 15, no. 1 (January 2000): 23–30. http://dx.doi.org/10.1080/14041040009362548.

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38

Laurence, David C. "Optimising Mine Closure Outcomes for the Community - Lessons Learnt." Minerals & Energy - Raw Materials Report 17, no. 1 (January 2002): 27–38. http://dx.doi.org/10.1080/140410402760018084.

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Zhironkin, Vitaly, and Juraj Janocko. "Revitalization of Coal Brownfields in Solving Environmental Problems and Structural Development of Kuzbass Economy." E3S Web of Conferences 134 (2019): 02002. http://dx.doi.org/10.1051/e3sconf/201913402002.

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The life cycle of mines lasts from several years to several decades. The closure of the mine occurs when its recourses are completely extracted, or mining is no longer profitable within its leasehold. Most regulatory authorities all around the world require the plan of mines and open-pits closure even before the mining begins, as it must be determined that the site would not pose a threat to the environment or society in future. Depending on the location, the site of mine or open-pit may be used in alternative way after closure or restored to the pre-operational condition. Local authorities increasingly require financial assurance that the funds needed to close mining enterprises will also be available in emergency situations. Special attention is paid to the environmental insurance intended to limit liability related to pollution elimination after mining activities at abandoned fields are over. In close connection with environmental insurance is post-mining – the development of alternative use of mining sites after the closure of mines and open-pits.

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Zhu, Xue Jun, Xing Lin Wen, Jie Peng, Lin Hai Gao, and De Ming Qu. "Application Study on Technology of Closure by Curtain Grouting in Mine Two of Dongfeng Coal Mine." Advanced Materials Research 446-449 (January 2012): 2002–6. http://dx.doi.org/10.4028/www.scientific.net/amr.446-449.2002.

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The closure is just a way to build an underground wall blocking water by curtain grouting, by which in the district rich in water of mine two of Dongfeng coal mine curtain grouting was done to closure the passageway of water, reduce the water, remove the threat from water disasters, and improve the operation conditions, to promote the safety in production and increase the economic efficiency and the social efficiency; at the same time, protect the valuable water resources in periphery of mining area, maintain the balance of ecological environment, was worth to be popularized.

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Fidalgo Valverde, Gregorio, Adam Duda, Francisco Javier Iglesias Rodríguez, Aleksander Frejowski, and Ivan Todorov. "Groundwater Risk Assessment in the Context of an Underground Coal Mine Closure and an Economic Evaluation of Proposed Treatments: A Case Study." Energies 14, no. 6 (March 17, 2021): 1671. http://dx.doi.org/10.3390/en14061671.

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Mining companies are responsible for the impacts that result from their mining activities even after the mining period has ended. At the same time, at the European and international levels, there is a lack of a detailed operational methodology comprising environmental risks during and after closure of underground coal mines. The environmental risk aspects that need to be considered when planning the closure of an underground coal mine and post closure in the broader environmental context are the following: modification of water flow scheme, surface instability, mine gas emission on the surface, and water and soil pollution. In this study, we focus on assessing groundwater risk in the context of an underground coal mine closure and evaluating the selected risk mitigation strategies in terms of performance and cost. The results from this study could be used for developing a final closure groundwater assessment plan by selecting the most feasible treatment alternatives for different environmental impacts, together with the transitional monitoring that could guarantee a hazard level in compliance with land reuse and the use of natural resources. Finally, the cost-efficient monitoring and treatment programs are used to estimate the financial provisions needed to mitigate groundwater risks during underground coal mine closure contexts.

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Ribeiro, José Claudio Junqueira, and Samuel Santos Felisbino Mendes. "A Participação no Fechamento de Mina no Direito Comparado." Veredas do Direito: Direito Ambiental e Desenvolvimento Sustentável 10, no. 20 (April 14, 2014): 23. http://dx.doi.org/10.18623/rvd.v10i20.379.

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A participação da sociedade civil no fechamento de minas é crucial para a garantia de uma sustentabilidade abrangente, que contemple as diferentes visões acerca da efetivação do direito ao meio ambiente ecologicamente equilibrado. Este trabalho, a partir de uma pesquisa bibliográfica e documental, tem como objetivo identificar e analisar a legislação brasileira sobre fechamento de mina, avaliando os mecanismos de participação popular nesse processo, comparando-os com as formas de participação durante o processo de licenciamento ambiental, e com as normas de outros países com liderança global na atividade minerária. O licenciamento ambiental já prevê a participação das comunidades afetadas por empreendimentos geradores de significativo impacto ambiental, por meio de audiências públicas. Entretanto, no caso da mineração, verificou-se que esses instrumentos não têm sido suficientes para garantir a sustentabilidade após o fechamento das minas, havendo necessidade de novos ordenamentos jurídicos complementares, como demonstra as experiências nacional e internacional. AbstractThe civil society participation in mine closure is crucial to guarantee a broad sustainability, one that considers the different approaches on the right to a healthy environment. This work, from a bibliographic and documental research, intends to identify and analyze the mine closure Brazilian legislation, assessing the mechanisms of popular participation in this process, comparing them with the forms of participation in the environmental licensing process and with international legislation from other countries with global leadership in mining activity. The public hearing process is already present in the environmental licensing to grant the participation of communities affected by projects generating significant environmental impact. Nonetheless, as concluded in this study, this instrument has not been successful enough in mining activities, especially concerning sustainability in mine closure. For this reason, as shown by the national and international experience, new rules are necessary to grant the participation of affected communities. KeywordsEnvironmental Licensing. Mine Closure. Participation Principle. Sustainable Development. Post Closure Sustainability.

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Roman, Liliana. "Considerations Regarding the Closure of the Mines in Valea Jiului." Mining Revue 27, no. 4 (December 1, 2021): 57–71. http://dx.doi.org/10.2478/minrv-2021-0035.

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Abstract The paper, starting from a series of general considerations regarding the closure of a mine, makes an analysis, according to the available data, of the manner some of the mines in the Valea Jiului were closed. It is specified that the relatively short time since the closure of the first mine in the Valea Jiului (30 years) did not allow to highlight any mistakes / errors of closure, which would have significant repercussions on the surface land and, in general, on the environment. However, more or less serious problems have already been reported, which arose after the closure of some mines, problems that appear in the last part of this paper.

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Lima, Hernani Mota de, José Cruz do Carmo Flores, and Jardel Carvalho Dias. "An assessment of NRM-20 as a guideline and as an enforcement tool to mine closure in Brazil." Rem: Revista Escola de Minas 67, no. 4 (December 2014): 367–72. http://dx.doi.org/10.1590/0370-44672014670170.

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This paper assesses the effectiveness of the NRM-20 as a guideline and a enforcement tool to mine closure in Brazil; assesses the analysis criteria and approval procedures adopted by DNPM to base their decisions on mine closure issues, and looks for gaps in the NRM-20 regarding technical, legal, environmental and socio-economic issues. The study was based on administrative mining proceedings deposed DNPM of Minas Gerais. Were assessed 32 mining proceedings. The study shows clear evidence that DNPM does not have specific criteria to guide the technical analysis of the closure plans required for, which makes the analysis subject to a personal interpretation. This study supports the conclusion that after twelve years of its publication, the NRM-20 lacks in proper regulating and guiding mine closure in Brazil.

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Kozłowska-Woszczycka, Aleksandra, and Katarzyna Pactwa. "Social License for Closure—A Participatory Approach to the Management of the Mine Closure Process." Sustainability 14, no. 11 (May 28, 2022): 6610. http://dx.doi.org/10.3390/su14116610.

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The European Union’s climate policy and the assumptions of the European Green Deal require Poland to take decisive transition efforts. The achievement of climate neutrality is a challenge due to the special role of coal in the Polish economy. Closing mines and abandoning coal is the greatest challenge for local communities in mining regions. This article presents the example of Wałbrzych, a Polish post-mining town, which has been experiencing the accumulation of negative consequences of inadequately planned liquidation since the 1990s. The current activities of mining companies in the face of abandoning coal were also analyzed. The gaps identified in the literature indicate the need to define a new method of managing the liquidation processes, based on the consideration of key risks resulting from decommissioning, to minimize the social costs in the first place. In this regard, it is helpful to diagnose the social concerns of the stakeholders. The social aspects of mine closures remain a challenge and finding effective ways to deal with them has become crucial for the industry. This prompted us to propose an approach based on community involvement in the decommissioning processes and the introduction of the social license for closure (SLC). By engaging the community, the SLC gives it a voice, allowing it to accommodate the individual needs of mining regions and ensure a successful and just transition. This article recognizes the key stakeholders and their fears related to the liquidation of mining. The organizational framework for stakeholder approval of the SLC is presented. The analysis was based on the example of Poland, a country facing the challenge of closing hard coal mines. Conclusions formulated on the basis of the case study complement the existing research in the field of social licensing and involving stakeholders in the mine closure planning process in accordance with the idea of corporate social responsibility.

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Robertson, Stuart, and Boyd Blackwell. "Mine Lifecycle Planning and Enduring Value for Remote communities." International Journal of Rural Law and Policy, no. 1 (September 9, 2014): 1–11. http://dx.doi.org/10.5130/ijrlp.i1.2014.3846.

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Mine lifecycle planning is critical to developing enduring value from mining for remote communities. The history of mining is replete with examples of communities being unsustainable post mine closure. The concept of enduring value involves ensuring that a sustainable community will remain following the closure of an associated mine. Since 2003, awareness has increased amongst the International and Australian peak mining bodies for the need to plan for enduring community value. This increased awareness has developed alongside the requirement for mining companies to operate in a socially responsible manner by maintaining a social license to operate. This paper thematically reviews the literature relevant to mine life cycle planning, enduring value, the socio-economic impacts of mining, and mine closure. Conditions required for a community to gain enduring value from mining include: ‘normalisation’ rather than being a ‘closed’ town; the existence of government support and funding; and realised economic diversification opportunities. It is imperative that these conditions are given due consideration 1) in the initial stages of mine and town planning and 2) throughout the life of the mine through ongoing monitoring and community engagement. However, we acknowledge the shortcomings in assuming planning is a panacea and suggest areas for further testing.

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Kovacs, Izabella, Sorin Simion, Alin Irimia, Ligia Ioana Tuhuţ, and Gheorghe Daniel Florea. "The social impact of mine closure in the Jiu Valley." E3S Web of Conferences 239 (2021): 00004. http://dx.doi.org/10.1051/e3sconf/202123900004.

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The impact of transition periods is experienced by the local population and economy as a result of mining activities closure and dismissal of a large number of workers followed by diversification of employment and career reorientation opportunities. The aim of the paper is to highlight the impact generated by closure of mining operations on local society and economy as well as identifying opportunities for harmonious development of communities in the Jiu Valley. Following the assessment of the social impact of mining activities closure, we found a rising tendency of unemployment rate among the middle-aged population that did not benefit from vocational retraining and the growing tendency of young people to leave the region for strictly economic reasons leading to widespread social aging.

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Dvofacek, J., P. Malikova, R. Sousedikova, S. Heviankova, P. Rys, and I. Osickova. "Water production as an option for utilizing closed underground mines." Journal of the Southern African Institute of Mining and Metallurgy 122, no. 10 (November 4, 2022): 1–7. http://dx.doi.org/10.17159/2411-9717/1439/2022.

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Each mining project goes through the same life-cycle, from prospecting and exploration to closure and post-closure periods. This prompts the question whether the closure of a mine constitutes the end of its life-cycle or whether the decommissioned mine can be employed for some other purpose. Best-practice references indicate that there are many viable options. In our opinion, the production of service water is one such option. Laboratory research was carried out on the water from a flooded underground coal mine in Ostrava-Karvina coal district, Czech Republic, concerning the production of service water from pumped mine-water. The research proved the practical feasibility of service or process water production. Given the effect of global climate change with regard to water resources, good prospects for this additional resource can be assumed since the water has to be pumped in any case for safety reasons.

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Bazaluk, Oleg, Ivan Sadovenko, Alina Zahrytsenko, Pavlo Saik, Vasyl Lozynskyi, and Roman Dychkovskyi. "Forecasting Underground Water Dynamics within the Technogenic Environment of a Mine Field. Case Study." Sustainability 13, no. 13 (June 25, 2021): 7161. http://dx.doi.org/10.3390/su13137161.

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The objective is to analyze the dynamics of the underground water of a mine field based on the study of the geofiltration process of the rock mass disturbed by mining to achieve safe extraction operations as well as subsurface territories at the stage of the mining enterprise closure. Numerical modeling, based on a finite difference method under the conditions of multifactority and definite uncertainty of processes of transformation of technogenic environment of a mine field, helps solve a problem concerning underground water dynamics forecasting. A hydrodynamic model of the M.I. Stashkov mine was developed while solving option series of epignosis problems in terms of the chronology of mine field stoping. The abovementioned made it possible to identify regularities of the history of filtration, the capacity parameters of rock mass and the expansion of areas of heightened hydraulic conductivity as well as to evaluate qualitatively the water balance components of a carbonic watered formation and an overlying one. The stage of mining closure helped obtain the forecasting hydrodynamic solutions. The efficiency of measures, concerning reduction of water ingress into mine workings and the mitigation of surface ecological effects of mine flooding was evaluated quantitatively. It was determined that implementation of the water control procedures makes it possible to perform a 10–38% decrease in water ingress. In this context, they may be applied both independently and simultaneously. In terms of mine closure and flooding, a period of complete underground water recovery takes three years; in the process, surface zones of potential waterlogging and swamping are developed within the floodplain of Samara River, located at the territory of Western Donbas (Ukraine). The scientific novelty is to define regularities of hydraulic conductivity transformation of the rock mass of a mine field starting from the mine working roof fall, up to its compaction during the mine operation period. To do that, nonstationary identification problems were solved, using numerical modeling. The abovementioned makes it possible to improve the reliability of hydrodynamic prognoses and develop technological schemes to control water at the state of the mine closure.

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Kavvadas, Michael, Christos Roumpos, Aikaterini Servou, and Nikolaos Paraskevis. "Geotechnical Issues in Decommissioning Surface Lignite Mines—The Case of Amyntaion Mine in Greece." Mining 2, no. 2 (April 29, 2022): 278–96. http://dx.doi.org/10.3390/mining2020015.

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Recent changes in the fossil-fuel energy sector require coal mining industries to plan for the future, including developing procedures for decommissioning and closure associated with mines. In surface coal mining, the geotechnical issues of decommissioning include the long-term stability of the pit slopes, particularly as the pit is gradually filled with water. This paper investigates such slope stability issues, with emphasis on the conditions prevailing in the Amyntaion surface lignite mine, in Western Macedonia, Greece. Analytical and numerical methods have been developed and used to estimate the temporal evolution of the overall safety factor, as the water level in the pit rises, creating a lake. It is shown that until the water level in the lake reaches a critical depth of approximately 15–35% of the final equilibrium condition, the safety factor against the overall slope instability decreases slightly (by about 3% in the case study, and up to 5–10% in other conditions) compared to its value at the end of exploitation. At higher lake levels, the safety factor increases significantly, as the beneficial effect of the lake water pressure acting on the slope overcomes the adverse effect of pore water pressure rise inside the slope. In typical mines, the critical water depth is achieved within a few years, since the surface area of the pit is smaller at deeper levels; thus, more favorable slope stability conditions are usually reinstated a few years after mine closure, while the small reduction in safety during the initial stages after closure is inconsequential. The paper investigates the parameters influencing the magnitude of the small reduction in the short-term safety factor and produces normalized graphs of the evolution of the safety factor as the lake water level rises. The results of the analyses can be used in preliminary closure studies of surface coal mines.

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Journal articles on the topic 'Mine closure'

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