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Top-coal initial caving law of continuous group caving method in extra-thick coal seams
矿业科学学报, 2023 In order to clarify the law of top coal caving with continuous group caving method in extra-thick coal seams, this study investigated the influences of the caving openings width on the morphological characteristics of caving body, the evolution law of ...
Wang Zuguang +3 more
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Numerical modelling of loose top coal and roof mass movement for a re-mined seam using the top coal caving method. [PDF]
PLoS ONE, 2023 The re-mined face using top coal caving system is the most applicable method for recovering the remaining reserves of a previous partially-mined thick coal seam.
Shuai Wang +3 more
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Block Caving Mining Method: Transformation and Its Potency in Indonesia
Energies, 2022 The block caving mining method has become increasingly popular in the last two decades. Meanwhile, Indonesia has several potential ore bodies which have not yet determined suitable mining methods.
Sari Melati +7 more
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Meikuang Anquan, 2022 Based on the discrete element development environment YADE under Linux environment, this paper develops a three-dimensional simulation system for continuous feeding and coal caving in fully mechanized caving face.
YANG Yi, GAO Yang, LUO Kaicheng, WANG Keping, FEI Shumin
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Determination of the suitable height at sublevel caving methods [PDF]
Acta Montanistica Slovaca, 1998 The paper in a short form deals with theoretical aspects of the sublevel-caving methods on iron deposits Niná Slaná and Kobeliarovo. This mining method in a stope-block use the LHD system mechanization by the all underground caving stoping technology ...
Bauer Viliam
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Development of 3D top coal caving angle model for fully mechanized extra-thick coal seam mining
International Journal of Mining Science and Technology, 2022 During high-intensity, fully mechanized mining of extra-thick coal seam, the top coal would cave to a certain 3D form. Based on the data collected during drilling, a 3D model of top coal caving surface space was established to determine the relationship ...
Hongfei Duan +4 more
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Determination on Reasonable Mining Height and Top Coal Caving Technology in Huating Coal Mine
Meikuang Anquan, 2020 In view of the problems, such as coal wall spalling, roof caving and low recovery rate of top coal in 250107-1 fully mechanized caving face of Huating Coal Mine at present, the method of combining FLAC3D numerical analysis and theoretical calculation ...
QIAO Zhongdong, QU Ying, YANG Guohong, LIU Biao
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Advances in Civil Engineering, 2021 Adopting an effective top coal caving method is the key to enhancing coal recovery and reducing gangue content for the fully mechanized top coal caving working face with extra-thick coal seams.
Shi Jiulin +3 more
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Lost-ore mining—A supplementary mining method to sublevel caving
International Journal of Rock Mechanics and Mining Sciences, 2023 Abstract Sublevel caving (SLC) is a mass mining method having high productivity and high safety. However, this method often causes a considerable amount of permanent ore loss. Interestingly, all lost ores are buried in the broken waste rocks that come mostly from the caved hanging wall and partly from the ore body in which ore and waste rock are ...
Zong-Xian Zhang
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Research on roof caving mechanism and influencing factors in inclined ore body caving mining
Results in EngineeringIn the process of caving mining, the overlying strata often fall down to form a concealed goaf. The goaf of caving method is characterized by strong concealment, complex shape and unstable roof.
Xin Bai, Pengrui Zhu
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