Academic literature on the topic 'Mine closure'

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Journal articles on the topic "Mine closure"

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

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Leão, Luisa de Moura, and Hernani Mota de Lima. "Climate changes at mine closure: a systematic review." Caderno Pedagógico 21, no. 9 (2024): e7736. http://dx.doi.org/10.54033/cadpedv21n9-116.

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This systematic review addresses the implications of climate change on mine closure processes, aiming to identify, analyze, and synthesize recent literature on how climate change influences the rehabilitation of mined areas, environmental risks, the safety of remaining structures, and the long-term sustainability of closure projects. Through a methodology of selecting scientific articles, articles published between 2020 and 2024 found in the Capes/CAfe database were analyzed. The analysis covered the climatic impacts on increasing temperatures and changes in precipitation patterns in relation to soil erosion, water management, and revegetation in mine closure processes. The results highlight challenges and opportunities arising from extreme weather events, which compromise the stability of mine structures, and the noted absence of Emergency Action Plans for dealing with extreme events, which hinders decision-making and the implementation of control measures. Recommendations include the development of adaptive practices and the incorporation of advanced environmental monitoring to mitigate risks and promote sustainability in mine closure, as well as being essential to increase environmental resilience.
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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 (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 (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 (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 (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 (2000): 202–9. http://dx.doi.org/10.1179/mnt.2000.109.3.202.

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Santos, Cecília Santiago, Mariangela Garcia Praça Leite, and Hernani Mota de Lima. "Integrated mine closure planning adherence Index: a new approach for evaluating mine closure plans." Resources Policy 105 (June 2025): 105604. https://doi.org/10.1016/j.resourpol.2025.105604.

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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 (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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Sharma, Chandra. "An overview of mine closure plan for sustainable development of coal mining sectors in India." INTERNATIONAL JOURNAL OF PLANT SCIENCES 18, no. 2 (2023): 162–66. http://dx.doi.org/10.15740/has/ijps/18.2/162-166.

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Mine closure plan is a vital document to meet the legal requirements for a mining company. MOEF&CC guidelines direct the coal mine owners to ensure that the mining area is restored to create a ‘self-sustaining system’ post mine closure. Mine Closure Plan consists of Progressive or Concurrent Mine Closure Plan, and Final Mine Closure Plan. The Mine closure activities should aim to restore land back to its original as far as practicable or further improved condition. The land should be returned with an added value that provides long-term support for communities and their livelihood. It should be sustainable where all the concerns of the environment, social and economics are addressed.
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Dissertations / Theses on the topic "Mine closure"

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De, Jager A. J. (Albertus Johannes). "Generic model for mine closure." Thesis, Stellenbosch : Stellenbosch University, 2000. http://hdl.handle.net/10019.1/49679.

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Thesis (MBA)--Stellenbosch University, 2000.<br>During the last five years, successful mine closure has become one of Iscor Coal Business primary strategic focus areas. Three Iscor Coalmines are currently in different stages of closure, i.e. North Field, Hlobane and Dumacol and the demand on management time spent on this issue is increasing. The changing legal environment, especially issues concerning rehabilitation and mine closure, demands that every company must take full responsibility for any detrimental effect that their operations may have on the environment. This study concerns itself with establishing a generic procedure for mine closure. The interface with all stakeholders, external and internal, is considered. The primary focus areas are determined and the most important issues within each area are discussed in such a way that operational managers and strategists could use it as base knowledge for future closures. Applying the model to an actual closure process, i.e. the closure of Durnacol Coalmine, tested the validity of the model and it was verified that the process could be used as a base for future reference.
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Xavier, André Moura. "Socio-Economic Mine Closure (SEMC) framework : a comprehensive approach for addressing the socio-economic challenges of mine closure." Thesis, University of British Columbia, 2013. http://hdl.handle.net/2429/45595.

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This thesis seeks to investigate the initiatives that address the socio-economic implications of mine closure that have been implemented by three mining companies which are located in Mongolia, Argentina and Canada. It further addresses the perceptions of stakeholders, specifically community members, local government representatives and mining company employees regarding the initiatives that have been implemented by three mining companies. Additionally, the research examines six mining industry-related frameworks/guidelines, and explores the ways in which these documents interpret the socio-economics of mine closure. Finally, this thesis introduces and evaluates the Socio-Economic Mine Closure (SEMC) Framework, which was originally developed as part of this PhD investigation. There are 10 elements in the Framework: Policy, Presence, Participation, Planning, Performance, Promotion, Perseverance, Patience, Passion, and Personality. The SEMC Framework is assessed in multiple ways: a) against the current literature on mine closure; b) through an online survey in which 151 experts were invited to provide feedback on the elements and sub-element constituents of the Framework and c) by its utility in constructing the fieldwork survey and the feedback of survey participants indicating the appropriateness of the framework. The study indicates that it would be relevant, timely and appropriate for the mining industry to introduce, discuss and adopt the proposed SEMC Framework. The case study analyses, all of which employed interviews, group sessions, and distribution of survey material as part of their methodological approaches, reveal that each case has unique characteristics and that all are context-based. The case studies also indicate that all three situations reveal the presence of some common issues. For instance, the results of the study suggest that, in all three cases, communication levels need to be improved and augmented. An important finding of the overall study concerns the element Personality within the SEMC Framework. Although in both the online survey and in the survey distributed to study participants, this element was ranked as one of low importance, through the interviews, group sessions and researcher observations it became clear that the Personality of the company community liaison does play a significant role in maintaining and fostering relationships between mining companies and local stakeholders.
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Unver, B. "Closure in longwall access roadways." Thesis, University of Nottingham, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.384696.

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Keilich, Walter. "Numerical modelling of mining subsidence, upsidence and valley closure using UDEC." School of Civil, Mining & Environmental Engineering - Faculty of Engineering, 2009. http://ro.uow.edu.au/theses/862.

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Ground subsidence due to mining has been the subject of intensive research for several decades, and it remains to be an important topic confronting the mining industry today. In the Southern Coalfield of New South Wales, Australia, there is particular concern about subsidence impacts on incised river valleys – valley closure, upsidence, and the resulting localised loss of surface water under low flow conditions. Most of the reported cases have occurred when the river valley is directly undermined. More importantly, there are a number of cases where closure and upsidence have been reported above unmined coal. These latter events are especially significant as they influence decisions regarding stand-off distances and hence mine layouts and reserve recovery.The deformation of a valley indicates the onset of locally compressive stress conditions concentrated at the base of the valley. Compressive conditions are anticipated when the surface deforms in a sagging mode, for example directly above the longwall extraction; but they are not expected when the surface deforms in a hogging mode at the edge of the extraction as that area is typically in tension. To date, explanations for valley closure under the hogging mode have considered undefined compressive stress redistributions in the horizontal plane, or lateral block movements and displacement along discontinuities generated in the sagging mode. This research is investigating the possibilities of the block movement model and its role in generating compressive stresses at the base of valleys, in the tensile portion of the subsidence profile. The numerical modelling in this research project has demonstrated that the block movement proposal is feasible provided that the curvatures developed are sufficient to allow lateral block movement. Valley closure and the onset of valley base yield are able to be quantified with the possibility of using analytical solutions. To achieve this, a methodology of subsidence prediction using the Distinct Element code UDEC has been developed as an alternative for subsidence modelling and prediction for isolated longwall panels. The numerical models have been validated by comparison with empirical results, observed caving behaviour and analytical solutions, all of which are in good agreement. The techniques developed in the subsidence prediction UDEC models have then been used to develop the conceptual block movement model. The outcomes of this research have vast implications. Firstly, it is shown that valley closure and upsidence is primarily a function of ground curvature. Since the magnitude of curvature is directly related to the magnitude of vertical subsidence there is an opportunity to consider changes in the mine layout as a strategy to reduce valley closure. Secondly, with further research there is the possibility that mining companies can assess potential damage to river valleys based on how close longwall panels approach the river valley in question. This has the added advantage of optimising the required stand off distances to river valley and increasing coal recovery.
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Reynolds, Christopher David. "The effects of coal mine closure on macroinvertebrate communities." Thesis, Nottingham Trent University, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.341279.

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Sherwood, Julia Merryn. "Modelling minewater flow and quality changes after coalfield closure." Thesis, University of Newcastle Upon Tyne, 1997. http://hdl.handle.net/10443/314.

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The changes that have taken place in the British Coal Industry over the last five years have meant that in many coalfileds the last deep mines have closed. When a coalfield is abandoned and dewatering ceases, groundwater levels rebound, threatening surface waters with polluting discharges. However, the sparse data sets available limit modelling with existing techniques. A lumped parameter model GRAM (Groundater Rebound in Abandoned Mineworkings) has been developed. This model conceptualises a coalfield as a group of 'ponds'. Each pond is an area of the coalfield that has been extensively worked and can be considered as a single hydraulic unit. The ponds are connected by pipes which represent major inter-connecting roadways along which flow is assumed to be turbulent. Discharge to the surface is also represented using pipes. Flow through the pipes can be calculated using the Prandtl and Nikuradse of the Colebrook-White pipeflow equations. The storage coefficient can vary vertically to represent both worked Coal Measures and the intervening unworked strata. GRAM is able to predict the timing and volume of discahrges. An iron component gives an indication of the water quality evolution of the discahrges. Monte Carlo simulation allows the variables that have most error in their estimation to be represented by probability distributions. The Dysart-Leven Coalfield in eastern Fife, Scotland has not been mined since 1985. However, dewatering has continued to protect the workings in the Frances Colliery. In 1994 British Coal decided the Frances would never reopen, there is therfore no longer a need to continue dewatering. GRAM has been used to produce estimates of the quantity, timing and location of dischargges from the Dysart-Leven Coalfield should pumping cease. MODFLOW has also been applied to the coalfield with less success. Water quality modelling was also attempted using GRAM's iron component, however, conclusive results will not be obtained until the three variables over which ther is most uncertainty have been calibrated against existing discharges.
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Short, Robin Vincent. "Using socio-economic impact assessment to plan for mine closure: De Beers Namaqualand Mines proposed closure in ten years time (AD 2002)." Thesis, University of Cape Town, 1992. http://hdl.handle.net/11427/23338.

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Shen, Boxi. "Study on financial assurance and closure cost for mine reclamation." Thesis, University of British Columbia, 2016. http://hdl.handle.net/2429/60171.

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Financial assurance for mine closure has been widely adopted by governments and companies internationally. Concern has grown in and around the global mining and mineral processing industry over potential risks associated with insufficient funding for mine closure. The motivation of this research is to review financial assurance information from several jurisdictions and to quantitatively assess closure cost for a specific example. This research address the following four objectives: 1. To carry out a literature review on financial assurance for mine reclamation. 2. To compare present regulations and policies on financial assurance for mine closure in Canada, United States and Western Australia. 3. To identify expectations for different types of mining. 4. To develop the closure approaches and apply a method to estimate and calculate the closure cost for a mine site. Main research results are as follow: a. Significant reclamation financial assurance information is highlighted, and the expectations of various stakeholder are identified for different types of mines in various jurisdictions across the world. b. Mine reclamation laws in selected jurisdictions of the Canada, United States, Western Australia have some differences and similarities in regulating agency, closure legislation, guidelines and other aspects. Regulations and policies on financial assurance for mine reclamation in the United States and Canada can be classified into prescriptive and performance-based approaches. The performance-based approach is preferred by mining companies for mine reclamation regulations. c. Developing a mine closure cost estimate requires an understanding of the site-specific closure requirements and available software can be used to perform the closure cost estimates. This study applies the Sherpa software to calculate the closure cost of a conceptual gold mine near Winnemucca, Humboldt County, Nevada. ArcGIS Software is used for calculating the size of each small surface water catchment areas for this mine. The final cost estimate for the total closure cost for the gold mine near Winnemucca, Humboldt County, Nevada is $32,417,400 including $22,574,400 direct cost and $9,843,000 of indirect cost. Considering the Gross Receipt Tax of $677,200, the total financial assurance for this project is $33,094,600. The total overhead costs account for 30.4% of the direct project costs.<br>Applied Science, Faculty of<br>Mining Engineering, Keevil Institute of<br>Graduate
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Mackenzie, Andrew G. "A socio-economic impact assessment of the future closure of a diamond mine in Namaqualand, South Africa : planning for mine closure a decade in advance." Master's thesis, University of Cape Town, 1992. http://hdl.handle.net/11427/17326.

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Bibliography: pages 56-7.<br>De Beers Namaqualand Mines (DBNM) have appointed the Environmental Evaluation Unit to undertake an impact assessment of mine closure. According to recent estimates DBNM anticipate that their diamond mining operations in Namaqualand will have to be closed in approximately ten years time. DBNM requested that the study focus on the socio-economic implications of mine closure within the regional context of Namaqualand and not the broader context of South Africa. It is anticipated that the results and recommendations of the study will be used by DBNM in planning for mine closure. The aims and objectives of the study are: 1) To assess the socio-economic consequences of future mine closure. 2) To recommend actions that will mitigate the impacts of mine closure. The aims and objectives of this report are to: 1) Fulfil the academic requirements of the degree. 2) Assess and evaluate information collected during the data collection phase of this project (contained in the Baseline Information Report) and to present these findings clearly and concisely, highlighting significant impacts and options for mitigation. 3) To communicate these findings in a way as would make them useful to both the client as the decision-maker and the interested and affected parties.
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Sherwood, Julia M. "Modelling minewater flow and quality changes after coalfield closure." Boston Spa, U.K. : British Library Document Supply Centre, 1997. http://ethos.bl.uk/OrderDetails.do?did=1&uin=uk.bl.ethos.363536.

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Books on the topic "Mine closure"

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Salminen, R., P. M. Heikkinen, and P. Noras. Mine closure handbook. [Geological Society of Finland], 2008.

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McArthur, D. R. Bell mine closure plan. s.n, 1994.

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W, Gadsby John, Malick James A, Day Stephen J, Geological Association of Canada. Meeting, and Mining Association of Canada. Meeting, eds. Acid mine drainage: Designing for closure. BiTech, 1990.

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Haney, Michael. Mine closure and its impact on the community: Five years after mine closure in Romania, Russia, and Ukraine. World Bank, 2003.

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Inc, Insight Information, ed. Mine closure plans and liability issues. Insight Press, 1996.

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Mine, Closure 2006 (2006 Perth W. A. ). Mine Closure 2006: Proceedings of the First International Seminar on Mine Closure, 13-15 September 2006, Perth, Australia. Australian Centre for Geomechanics, 2006.

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International Seminar on Mine Closure (2nd 2007 Santiago, Chile). Mine Closure 2007: Proceedings of the Second International Seminar on Mine Closure, 16-19 October 2007, Santiago, Chile. Edited by Fourie A. B, Tibbett Mark, Wiertz Jacques, and Australian Centre for Geomechanics. Australian Centre for Geomechanics, 2007.

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Inc, Andersen Management Services. Economic and social impact study of the Griffith Mine closure. Andersen Management Services Inc, 1985.

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Closure, Conference on Mine. Mine closure: Creating productive public and private assets. s.n.], 1995.

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South African Institute of Mining and Metallurgy. Colloquium, ed. Colloquium, mine closure: 27 April 1993, MINTEK, Randburg. South African Institute of Mining and Metallurgy, 1993.

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Book chapters on the topic "Mine closure"

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De Graff, Jerome V. "Mine Closure." In Selective Neck Dissection for Oral Cancer. Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-12127-7_199-1.

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Maiti, Subodh Kumar. "Mine Closure." In Ecorestoration of the coalmine degraded lands. Springer India, 2012. http://dx.doi.org/10.1007/978-81-322-0851-8_17.

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De Graff, Jerome V. "Mine Closure." In Encyclopedia of Earth Sciences Series. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-73568-9_199.

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Marais, Lochner, Sethulego Matebesi, and Verna Nel. "Understanding mine closure." In Local Responses to Mine Closure in South Africa. Routledge, 2023. http://dx.doi.org/10.4324/9781003403326-1.

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Xu, Lechang, Xueli Zhang, Jie Gao, Guangzhi Wei, and Xin Shang. "Closure of Underground Mine of Lincang Uranium Mine." In Uranium, Mining and Hydrogeology. Springer Berlin Heidelberg, 2008. http://dx.doi.org/10.1007/978-3-540-87746-2_29.

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Matebesi, Sethulego, Thomas Stewart, Maléne Campbell, and Oupa Kale. "Koffiefontein mine downscaling." In Local Responses to Mine Closure in South Africa. Routledge, 2023. http://dx.doi.org/10.4324/9781003403326-9.

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Otto, James M. "Global Trends in Mine Reclamation and Closure Regulation." In Mining, Society, and a Sustainable World. Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-01103-0_10.

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Khanyile, Samkelisiwe, and Lochner Marais. "Mine closure policies and strategies in South Africa." In Local Responses to Mine Closure in South Africa. Routledge, 2023. http://dx.doi.org/10.4324/9781003403326-3.

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Acquah, Peter C., and A. Boateng. "Planning for Mine Closure: Case Studies in Ghana." In Environmental Policy in Mining. Routledge, 2024. https://doi.org/10.1201/9780203756966-21.

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Gheisari, Narges, Morteza Osanloo, Akbar Esfahanipour, and Mohajer Mansouri. "Closure Risk Assessment in Atashkooh Stone Quarry Using Risk Matrix." In Mine Planning and Equipment Selection. Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-02678-7_77.

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Conference papers on the topic "Mine closure"

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Poscente, Michael, Tsogtbaatar Choijinzav, and B. Chultemgombo. "Mine closure plan for the Salkhit silver mine in Mongolia." In Mine Closure 2022: 15th Conference on Mine Closure. Australian Centre for Geomechanics, Perth, 2022. http://dx.doi.org/10.36487/acg_repo/2215_12.

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Robinson, Jamie, Ian Andrews, and Jason Dodd. "Construction of a passive sulfate treatment system." In Mine Closure 2022: 15th Conference on Mine Closure. Australian Centre for Geomechanics, Perth, 2022. http://dx.doi.org/10.36487/acg_repo/2215_24.

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Cossey, Heidi, Heather Kaminsky, and Ania Ulrich. "Evaluating the long-term behaviour and viability of an oil sands tailings management and reclamation strategy." In Mine Closure 2022: 15th Conference on Mine Closure. Australian Centre for Geomechanics, Perth, 2022. http://dx.doi.org/10.36487/acg_repo/2215_19.

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Rissik, David, and Michelle Iles. "Climate change and mine closure: initial risk assessment of the Ranger Mine closure plan." In Mine Closure 2022: 15th Conference on Mine Closure. Australian Centre for Geomechanics, Perth, 2022. http://dx.doi.org/10.36487/acg_repo/2215_42.

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Dobrowolski, Mark. "Flora Restorer: sowing a diverse ecosystem." In Mine Closure 2022: 15th Conference on Mine Closure. Australian Centre for Geomechanics, Perth, 2022. http://dx.doi.org/10.36487/acg_repo/2215_72.

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Cissé, Mohamed Kadiatou, Marie Guittonny, and Bruno Bussière. "Natural analogue of a cover with capillary barrier effects to improve the long-term performance evaluation and the design of the cover." In Mine Closure 2022: 15th Conference on Mine Closure. Australian Centre for Geomechanics, Perth, 2022. http://dx.doi.org/10.36487/acg_repo/2215_69.

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Slingerland, Neeltje, and Sven Dressler. "Evaluating construction tolerances and tailings dam shape for closure using the CAESAR-Lisflood landscape evolution model." In Mine Closure 2022: 15th Conference on Mine Closure. Australian Centre for Geomechanics, Perth, 2022. http://dx.doi.org/10.36487/acg_repo/2215_82.

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Taylor, Ian, Kaisan Critchell, S. Hill, and Pete Wheeler. "Lady Rosie waste rock landform design." In Mine Closure 2022: 15th Conference on Mine Closure. Australian Centre for Geomechanics, Perth, 2022. http://dx.doi.org/10.36487/acg_repo/2215_02.

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Slatch, Amrita. "Suggesting landscape as a framework for mine closure of abandoned opencast mines based on understanding global practices, standards and vision." In Mine Closure 2022: 15th Conference on Mine Closure. Australian Centre for Geomechanics, Perth, 2022. http://dx.doi.org/10.36487/acg_repo/2215_41.

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Iles, Michelle, and David Rissik. "Risk-based contaminant management: Ranger Mine case study." In Mine Closure 2022: 15th Conference on Mine Closure. Australian Centre for Geomechanics, Perth, 2022. http://dx.doi.org/10.36487/acg_repo/2215_45.

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Reports on the topic "Mine closure"

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Worden, Sandy, Claire Côte, Kamila Svobodova, et al. Baseline works for mine rehabilitation and closure collaboration project. Sustainable Minerals Institute, The University of Queensland, 2021. http://dx.doi.org/10.14264/6c92886.

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None, None. Underground Test Area (UGTA) Corrective Action Unit 97: Yucca Flat/Climax Mine, Nevada National Security Site, Nevada (Closure Report). Office of Scientific and Technical Information (OSTI), 2020. http://dx.doi.org/10.2172/1784927.

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None, None. Closure Monitoring Report for Corrective Action Unit 97: Yucca Flat/Climax Mine, Underground Test Area, Nevada National Security Site, Nevada, Revision 1. Office of Scientific and Technical Information (OSTI), 2021. http://dx.doi.org/10.2172/1962423.

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Yu, Y. S. Capabilities, limitations and the use of the GEOROC computer package. Natural Resources Canada/CMSS/Information Management, 1987. http://dx.doi.org/10.4095/325534.

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Computer codes have been used by various researchers in modelling viscoelastic formations, with a good degree of success. Serata used a complex rheological model, REM (Rheological Element Model) code, to simulate mine openings [2]. Others, in the U.S. Nuclear Waste Isolation Programme, have evaluated the capability of various codes for the design of nuclear waste repository [3]. Because of the proprietary nature of the above codes, they are not available to mine operators in Canada. Consequently, in 1984, CANMET initiated a research project to develop a numerical modelling package for use in the design of underground potash mine openings. GEOROC is the resultant computer program; it was developed by RE/SPEC Ltd., of Calgary under contract to CANMET. In recent years, computer simulation is playing an increasingly important role in evaluating the short and long term structural stability of underground mine openings, and in ground control studies related to mine design and layout. Such simulations are increasingly being used in the design of underground salt and potash mines. Because of the viscoelastic nature of salt rock formations, simulation models must take into consideration their time dependent properties if they are to correctly predict opening closures, ground stresses, and ground stability based on prescribed failure criteria. This presentation describes the capabilities, limitations and the use of computer code - GEOROC. A case history in which GEOROC is used to simulate a typical room and pillar mining section of a Western Canadian potash mine is provided. Predicted ground behaviour using the code is compared with actual behaviour as determined through field measurements. Results indicate that good correlation exits between predicted and measured ground behaviour, and is an encouragement to greater use of modelling in mine stability studies related to mine design.
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None, None. POST-CLOSURE MONITORING LETTER REPORT FOR CORRECTIVE ACTION UNIT (CAU) 97: YUCCA FLAT/CLIMAX MINE; CAU 98: FRENCHMAN FLAT; AND CAU 99: RAINIER MESA/SHOSHONE MOUNTAIN, UNDERGROUND TEST AREA, NEV ADA NATIONAL SECURITY SITE, NEV ADA, FOR CALENDAR YEAR 2020, REVISION 1, MAY 2021. Office of Scientific and Technical Information (OSTI), 2021. http://dx.doi.org/10.2172/1969601.

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Gowtham, Thakut, Aneesh Lawande, Herin Patel, Archit Patel, and Kartik Patel. Mini ASD closure in dextrocardia with situs inversus by lalt approach: A surgical challenge. Peeref, 2023. http://dx.doi.org/10.54985/peeref.2306p6674295.

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Brewer, Jonathan, Yoonee Jeong, and Arndt Husar. Last Mile Connectivity: Addressing the Affordability Frontier. Asian Development Bank, 2022. http://dx.doi.org/10.22617/wps220514-2.

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This working paper addresses the challenge to implement ‘last mile’ solutions that deliver affordable internet connectivity to communities in Asia and the Pacific region. It examines how COVID-19 increased demand for internet access and explains why new technologies are failing to deliver affordable connectivity to rural and remote populations. It explores access gaps and details technological, regulatory, and investment strategies that can help close the digital divide. Explaining how last-mile connectivity can provide affordable, resilient, and reliable solutions, it shows why it is central to building an inclusive digital future for all.
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Petrie, Christopher, Katija Aladin, and Danny Gilliland. reativity Spotlight: Five Innovation Responses to COVID-19. HundrED, 2020. http://dx.doi.org/10.58261/bawg8780.

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According to UNESCO, COVID-19 has dramatically impacted over 90% of school education globally this year. In addition to our Creativity Spotlight report with The LEGO Foundation, we believed it important to recognise the impact this crisis has caused these innovations. This supplementary mini-report presents case studies from surveys and interviews on how five of the selected innovators have responded to COVID-19 as a result of widespread school closures. The purpose is to illuminate how a variety of innovations have coped with the challenges they faced (and continue to face), and shed light on the changes/learnings since.
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Kapriev, Georgi. COVID-19: Crisis, Social Panic, Religious and Academic Life in Bulgaria. Analogia 17 (2023), 2023. http://dx.doi.org/10.55405/17-5-kapriev.

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This paper reflects on the effects of the COVID-19 pandemic on religious life in Bulgaria, especially in the Orthodox Church, and on the sphere of academic teaching. The picture that emerges against the background of the moderate COVID-19 measures and the non-closure of churches is rather disturbing, given the aggressive attacks by non-believers against ecclesial practice. It testifies to widespread superstition and deep theological ignorance even among those who designate themselves as ‘Orthodox Christians’. The compromise of university education during the COVID-19 panic and the radical changes to the social way of thinking go—as a basis of the perplexity of the social mind—hand in hand with the destruction of the democratic world order by Russia’s war against Ukraine.
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Word, Sheela. Eeny, meeny, miny, mo : self and close-other selection of personality test interpretations. Portland State University Library, 2000. http://dx.doi.org/10.15760/etd.5739.

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