Results 21 to 30 of about 157 (114)
Long-Term Creep Mechanical and Acoustic Emission Characteristics of Water-Immersed Coal Pillar Dam
Applied SciencesThis study conducted uniaxial creep tests on coal samples under both natural and water-saturated conditions for durations of about 180 days per sample to study the stability of coal pillar dams of the Daliuta Coal Mine underground reservoir.
Ersheng Zha +5 more
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Results in EngineeringCoal pillar dams constitute a critical component of underground reservoir dam structures in coal mines. Due to reservoir water extraction and discharge processes, coal pillar dams experience repeated wet-dry cycles (saturation-drying-saturation ...
Yan Wang +3 more
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Meikuang AnquanCoal mine underground reservoir water storage technology has become one of the important ways for the coordinated development of coal resource mining and water resource protection in western mining areas of China, and the stability of coal pillar dam ...
Junmin WU
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Study on periodic stress bearing characteristics of water-immersed coal body
Meikuang Anquan, 2023 For the long-term progressive damage of the coal pillar dam body of the underground reservoir under the action of water immersion-periodic stress, taking a mine in Shaanxi Province as the engineering background of the underground reservoir project, the ...
LIU Xiaofei, XUE Zongjian, NIU Tengchong
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Simulation of the Uniaxial Mechanical Properties and Crack Evolution of Coal Pillar-artificial Dam in Abandoned Mines [PDF]
, 2021 Abstract 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 engineering stability.
Xin Lyu +5 more
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Experimental study on mechanical properties of composite dam in underground water storage space
Meikuang Anquan, 2023 In view of the application status of underground water storage space in Shendong Mining Area, in order to better understand the stability of composite dam body, samples of coal pillar + artificial composite dam body were prepared through field sampling ...
Peng LI
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Adaptive condition of construction and design system of coal mine underground reservoir
Meikuang Anquan, 2022 In order to protect and utilize water resources in coal mining, academician GU Dazhao has put forward the theoretical framework and technical system of coal mine underground reservoir with “guiding storage and use” as the core after 20 years of ...
ZHANG Bao +5 more
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A Fractional-Order Creep Model of Water-Immersed Coal
Applied Sciences, 2023 The long-term stability of a coal pillar dam is a serious concern for coal mine underground reservoirs because of the creep behavior of coal in complex water immersion and mechanical environments.
Gen Li +6 more
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, 2023 Abstract The continuous operation of coal mine underground reservoirs exposes the dam body of coal pillars to mining disturbances and prolonged water flooding, resulting in the deterioration of coal pillars' mechanical properties and posing a serious threat to the stability of the dam body. To this end, coal samples from the proposed pillar dam
Beifang Wang +3 more
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Experimental Investigation of the Mechanical Failure Behavior of Coal Specimens With Water Intrusion
Frontiers in Earth Science, 2020 Mining fissures formed by coal mining can easily open bedrock and loose aquifers, and can thus cause water–rock interaction. The strength of coal and rock and their pore and fracture development characteristics are closely related to moisture content ...
Qiangling Yao +5 more
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