Results 41 to 50 of about 167,709 (298)
Processes, 2022 Improving coal resource mining rates has long been a focus of coal industry research. The gob-side entry retaining by roof cutting (GERRC) is a new coal mining technology that has gained popularity in China due to its high mining rate and safety.
Zhen Zhu +4 more
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Meitan xuebao, 2023 Rock bolt support and borehole pressure relief change the medium properties of roadway surrounding rock, form the roadway gradient surrounding rock structure with three media and two planes, increase the absorption and attenuation ability of stress waves,
Aiwen WANG +7 more
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Yantu gongcheng xuebao, 2022 In densely populated urban areas, large rectangular pipe jacking projects are becoming increasingly popular. One of the most difficult aspects of the pipe jacking construction is to control the deformation of the surrounding rock.
SHE Fang-tao 1, 2, WU Zheng-qi 1, ZHOU Wei-zong 1, LIU Guo-ping 3, LI Lei 3
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Advances in Civil Engineering, 2021 When carrying out construction that underpasses existing subway tunnels, the surrounding rock is frequently disturbed. Therefore, it can loosen easily and become unstable, which makes its stability difficult to control.
Zaiqiang Hu +3 more
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Yantu gongcheng xuebao, 2023 The in-situ tests on the single-layer lining structure for water conveyance tunnels in South China are carried out, the mechanical response of the structure under the internal pressure in the surrounding rock is revealed, and the influences of different ...
MO Jianhao 1, TANG Xinwei 1, YAN Zhenrui 2
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Hydraulic Transient Impact on Surrounding Rock Mass of Unlined Pressure Tunnels
Water, 2023 The frequent pressure pulsations due to hydraulic transients in hydropower plants induce cyclic loading on the rock mass that may contribute to increased instances of block falls and increased risk of tunnel collapse over the power plant lifetime. This study focuses on understanding the effect of frequent start and stop sequences of hydropower in ...
Sanyam Ghimire +2 more
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Energies, 2022 Previous studies have shown that the influence of deep dynamic pressure on the surrounding rock control of a coal roadway is one of the difficulties in mine roadway support.
Shengrong Xie +6 more
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Simulation study on slip failure of roadway surrounding rocks containing weak layer
Meikuang Anquan, 2021 To study the influence of weak layer on the slip failure of surrounding rocks of coal mine roadway, numerical models of coal mine roadway with weak layer are created by using the numerical simulation software UDEC.
DING Minjie, GUO Pengfei, PENG Yanyan
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Permeability characteristics of fractured rock mass: a case study of the Dongjiahe coal mine
Geomatics, Natural Hazards & Risk, 2020 The intricate distribution of fractures in rock mass leads to the anisotropy of permeability characteristics of the rock mass, which affects the overall stability of rock mass.
Ke Ma +5 more
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Energy Science & Engineering, 2023 A reasonable width of the coal pillar is very important to the surrounding rock control of the gob‐side roadway. An unreasonable width of the coal pillar will make the roadway to be located within the range of strong mining influence, leading to severe ...
Deqiu Wang +8 more
semanticscholar +1 more source