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Structural model of hard overburden shell in thick coal seam and its application [PDF]
Scientific ReportsTaking the mining of extra-thick coal seam of Carboniferous hard overburden in tongxin coal mine of datong mining area as the engineering background, the movement characteristics of hard overburden in fully-mechanized caving mining of 3–5 # extra-thick ...
Xing Fu +5 more
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Energy Science & EngineeringOverburden bed separation grouting (OBSG), a green mining method, can prevent coal‐mining subsidence reduction and protect the environment of mining areas.
Zhiyou Gao +4 more
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Mining stress formation and distribution: Predictive model based on overburden key strata structure
Energy Science & EngineeringIn coal mines, the effective extraction of relief gas and the prevention of dynamic disasters depend on accurate predictions of the spatial distribution of mining stress in the overlying rock.
Hongkai Han +7 more
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Muon radiography experiments on the subway overburden structure detection
Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2023 30 pages, 10 ...
Yaping Cheng, Ran Han, M Oon
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Applied Sciences, 2023 In order to explore the fracture law and structural evolution characteristics of overlying strata in deep high-stress mining, according to the geometric characteristics and mechanical causes of overlying strata in different mining stages of the stope ...
Xinfeng Wang +5 more
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Frontiers in Earth Science, 2023 As coal resources are gradually being extracted at depth, the overlying strata movement behavior and stress environment become complex and violent, leading to the frequent triggering of strong dynamic hazards.
Junpeng Zou +3 more
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Strong Structure Formation of Ceramic Composites Based on Coal Mining Overburden Rocks
Journal of Composites Science, 2023 Currently, the amount of man-made waste worldwide is steadily increasing. It is, therefore, necessary to constantly look for effective ways of utilization and recycling. It is also necessary to reduce the use of non-renewable resources and reduce the impact on the environment.
M A Rakhimov, Pavel Kozlov
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Study on overburden structure and working resistance of supports in deep buried coal seam
Meikuang Anquan, 2023 In view of the characteristics of complex overburden structure and strong mining pressure in deep coal seam working face with large mining height, taking Yangchangwan Coal Mine as the engineering background, the mechanical model of overburden rock ...
LIU Hongtao, HAN Zhou, HAN Zijun, YANG Zhihua, HE Weisheng, WANG Sichen, LUO Zilong
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Energy Science & EngineeringIt is difficult to control the mine pressure in the coal face under the close coal seam group. On the basis of the mining background of 4‐1#, 4‐2#, and 4‐3# coal seams in the I01 mining area of the Ningdong mining area, the fracture characteristics and ...
Shilin Song +5 more
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Energies, 2022 To understand the change in overburden structure after coal seam group mining, we investigated the overburden characteristics and bearing capacity of abandoned coal mines in a coal seam group. We provide a theoretical basis for the construction and utilization of a coal mining subsidence area under a complex geological environment. This paper takes the
Ning Jiang, Junbiao Ma, Ke Lv
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