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Dynamic properties of undisturbed sand in deep overburden of a dam foundation
Yantu gongcheng xuebao, 2023 The ultra-deep overburden foundation is a great challenge for the construction of water conservancy and hydropower projects. The dynamic mechanical properties of overburden soil are the basis for discriminating liquefaction of foundation soil and ...
YU Yanyang 1, PENG Wenming 2, LI Jian 2, LUO Qixun 2, MA Fulong 2, CHEN Cong 3, LIU Enlong 1
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Structure and deformation measurements of shallow overburden during top coal caving longwall mining
International Journal of Mining Science and Technology, 2017 Mining induced pressures are strong and overburden failure areas are large in top coal caving longwall mining, which constrains high production and safety mining.
Sheng Li +5 more
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Fluids, 2019 This study investigated the impact of overburden height on the hydraulic fracturing of a concrete-lined pressure tunnel, excavated in intact rock, under steady-state and transient-state conditions.
Moses Karakouzian +2 more
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Heliyon, 2023 Coal will occupy the main position in China's energy structure for a long time, and the negative externalities of its exploitation have a serious impact on the ground surface and its appurtenances.
Erhu Bai +5 more
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Effects of overburden characteristics on dynamic failure in underground coal mining
International Journal of Mining Science and Technology, 2017 Dynamic failures, or “bumps”, remain an imperative safety concern in underground coal mining, despite significant advancements in engineering controls. The presence of spatially discrete, stiff roof units are one feature that has been linked to these events.
Heather E. Lawson +3 more
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Advances in Civil Engineering, 2022 Taking two typical stopes with variable length of working face inclined length from small to large and from large to small as the research object, the stope overburden structure model under different face length conditions is constructed through ...
Xinfeng Wang +5 more
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Fine detection of overburden strata based on time lapse high density resistivity method
矿业科学学报, 2019 Fine detection for the deformation failure of overburden strata caused by underground mining may provide reliable guidance for safety,high efficient and green coal mining.Firstly,the principle of overburden detection based on time lapse high density ...
Li Fei +5 more
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Advances in Civil Engineering, 2019 There are risks of water burst and sand inrush in the working face of the Northwest Mining Area in China. Based on the 22407 working face of Halagou coal mine, the evolution characteristics and mechanism of a two-zone failure mode of the overburden ...
Daming Yang, Wenbing Guo, Yi Tan
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Meikuang Anquan, 2021 In order to study the optimal scheme of staggered distance mining in double coal seam and its influence on the key strata of overburden structure, take the geological conditions of Yushen Mine Area as the background, the optimal scheme was selected from
SUN Xueyang, LU Mingjiao, LI Cheng, MIAO Lintian
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Numerical Simulation on Failure Rules of Overburden Strata in Shallow Coal Seam
IOP Conference Series: Earth and Environmental Science, 2021 Abstract The mining, under the condition of the shallow coal seam, the thick loose beds and the thin base rock in Shendong mining area in Shaanxi province of China, makes the surface subsidence take on the situation of the discontinuous falling crack failure.
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