Results 1 to 10 of about 157 (114)
Experimental study on the compression and shear deformation evolution of coal pillar dam samples [PDF]
Scientific ReportsTo understand the mechanical properties and deformation failure patterns of coal pillar dams in gently inclined coal seam mine underground reservoirs, compression-shear coupling tests with variable angles were conducted on coal pillar dam samples under ...
Yan Wang, Haoran Liu, Shuo Feng
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Study on the strength deterioration characteristic and damage model of coal pillar dams with repeated water immersion in underground reservoirs [PDF]
Scientific ReportsThe continuous operation of coal mine underground reservoirs exposes the coal pillar dams to mining disturbances and prolonged water immersion, resulting in the deterioration of coal pillars' mechanical properties and posing a serious threat to the dam ...
Beifang Wang +3 more
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Energies, 2022 The coal mine underground reservoir is an effective facility for mine groundwater utilization in water-deficient and ecologically fragile areas. Usually, the artificial reserved coal pillar is used as the dam of underground reservoir, and little research
Zhixin Zhang, Qiang Guo, Wei Liu
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Journal of Materials Research and Technology, 2023 To simulate the impact of the periodic wetting of the groundwater reservoir water level on the mechanical performance of the groundwater reservoir dam, we made a coal pillar-artificial dam assembly with a vertical interface, designed uniaxial compression
Xin Lyu +5 more
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Experimental Study on Damage and Failure of Coal-Pillar Dams in Coal Mine Underground Reservoir under Dynamic Load [PDF]
Geofluids, 2021 The stability of coal-pillar dams in underground hydraulic engineering works is affected not only by long-term water erosion but also by dynamic loading induced, for example, by roof breaking or fault slipping.
Qiangling Yao +4 more
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Meitan kexue jishu, 2023 Coal mine underground reservoir is one of the key technologies to solve the protection and utilization of water resources in western mining areas. The basis for maintaining the safe operation of the reservoir is engineering safety, and the dam body is ...
Mingbo CHI +7 more
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Geofluids, 2022 Coal mine underground reservoir water storage technology is an effective technical way to achieve high efficiency of coal mining and protection of water resources. The stability of coal pillar dam plays a decisive role in the safe and stable operation of
Liu Xuesheng +4 more
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Advances in Materials Science and Engineering, 2022 The key to the construction of underground reservoirs in abandoned mines is the construction of coal pillar-artificial dams, and the choice of bonding parameters between the coal pillars and artificial dams is the deciding factor that determines the ...
Xin Lyu +4 more
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Analysis of Mechanical Properties of Coal Pillar Dam in Mine Goaf
Meikuang Anquan, 2020 To study the mechanical properties changes and deformation of the underground coal pillar dam body in the mine goaf in the underground working environment, the Lijiatun Coal Mine is taken as the research background, and the laboratory similar simulation ...
LI Yumeng, WANG Wencai
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Creep behavior and permeability evolution of coal pillar dam for underground water reservoir
International Journal of Coal Science & Technology, 2023 Using goof as water storage space plays a vital role in the ecological environment and economic development of arid mining areas, while the rock strength and the stability of coal pillars in underground water reservoirs are closely related to creep ...
Yulong Chen +4 more
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