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Ground control strategies for longwall top-coal caving panel in extra-thick coal seams with thick-hard roof [PDF]
Scientific ReportsThick-hard roof fracturing presents a significant challenge for disaster prevention in longwall mining. This study investigates the 15,311 south working face and develops a mechanical model to analyze energy release during both initial and cyclic roof ...
Rui Wang +4 more
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Energy Procedia, 2012 AbstractWith the mine development and utilization, the mine environment problems and subordinate geology disaster phenomenon it causes have been revealed gradually, some also lead to serious results. Therefore, the balanced relation of “resources mining - environmental protection - mining area sustainable development” is a very important topic of ...
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Failure mechanisms and stability control of roadways in thermally damaged rock under asymmetric stress: a case study [PDF]
Scientific ReportsStability maintenance of deep roadways in thermally damaged rock masses presents complex challenges under asymmetric stress conditions. This study investigates the failure mechanisms and proposes a control strategy using an integrated methodology of ...
Zhiqiang Wang +5 more
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Mechanisms of stress distribution influenced by numerical model size and goaf parameters in multi-coal seam mining [PDF]
Scientific ReportsMulti-seam coal mining often leads to complex stress redistribution due to strong interlayer interactions. This study employs FLAC3D to investigate the influence of numerical model dimensions and goaf constitutive representation on stress distribution in
Nan Wang +3 more
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Research on the failure law and actual measurement of floor in extremely close distance thick coal seam mining [PDF]
Scientific ReportsThe vigorous mining of domestic coal resources is accompanied by the complexity and diversification of the conditions of coal seams. Multi seam and close distance coal seam mining have become normalized.
Yupei Deng +6 more
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Sensors, 2023 The characteristics of acoustic emission signals generated in the process of rock deformation and fission contain rich information on internal rock damage.
Lin Sun +5 more
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Frontiers in Earth Science, 2023 The strength evolution law of concentrated full tailings is closely related to the storage construction method, especially the growth law of shear strength with curing age.
Sha Wang +13 more
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International Journal of Mining Science and Technology, 2021 To investigate the creep and instability properties of a cemented gangue backfill column under a high-stress area, the uniaxial compression creep tests were conducted by single-step and multi-step loading of prismatic samples made of cemented gangue ...
Hongyu Ran +4 more
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Indonesia Green Mining Industry
European Journal of Development Studies, 2022 The mining industry is one of the industries that has caused environmental damage. It is not only deforestation, but pollution, groundwater, and air problems caused by the mining industry. Departing from the worsening ecological conditions due to development, the mining industry became environmentally friendly by adopting the so-called green mining ...
Asep Saepudin +3 more
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Green Mining Technology in Mining [PDF]
Advances in Engineering Research, 2015 Coal is the most important resource in China, the number has been more than one-third of the world's coal total. Many problems caused by coal mining are very serious, such as the environmental issues, industrial accidents, resource destruction and other issues .So green mining technology in China's coal mining operations are very important.
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