Results 1 to 10 of about 93,033 (262)
Continuous Support for Roadways [PDF]
Energies, 2021 Opening deeper coal seams requires constructing underground mine roadways in difficult geological conditions. Supporting of such roadways is subjected to a very high load from the rock mass. The types of roof supports used so far do not provide immediate support for the rock mass, which tends to converge the roadway, allowing for a rapid build-up of ...
Krzysztof Mazurek +3 more
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Investigation of the evolution and control of fractures in surrounding rock under different pressure relief and support measures in mine roadways prone to rockburst events [PDF]
Royal Society Open Science, 2021 This paper studies the evolution and control of surrounding rock under different pressure relief support conditions in mine roadways in which rockburst events have occurred.
Yongliang He +3 more
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Advanced Support Technologies in Roadway
Applied Sciences, 2022 In the continuous development and application of underground spaces (such as roads, tunnels and underground caverns), safe and efficient support technology is an important means to maintain the stability and integrity of roadways [...]
Jiahao Sun, Guoming Liu, Xiangming Hu
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Research on surrounding rock control technology of deep roadway based on butterfly failure theory
Meitan kexue jishu, 2023 At present, roadway surrounding rock control is still one of the major problems in deep mining of coal resources. The formation and development of the plastic zone of the surrounding rock is the main cause of large deformation and failure of roadway.
WANG Weijun +3 more
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Lithosphere, 2022 As one of the most common disasters in deep mine roadway, floor heave has caused serious obstacles to mine transportation and normal production activities. The third section winch roadway in the third mining area of Qitaihe Longhu coal mine has a serious
Xuming Zhou +7 more
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Gong-kuang zidonghua, 2021 In the context of the destruction and continuous deformation of the surrounding rock of the high stress soft rock roadway, how to scientifically and reasonably repair and support the roadway that has undergone large deformation, and how to achieve ...
YAN Xiaowei
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Surrounding rock control technology of deep large section composite roof mining roadway
Meikuang Anquan, 2022 In view of the problems of roof collapse and difficult roof support in composite roof roadway, the deformation and instability mechanism of composite roof is analyzed, and the cooperative support technology of long and short anchor cables is proposed ...
LIANG Wenxu
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Factors influencing the anti-impact performance of a “roadway rock support” system
Frontiers in Earth Science, 2023 A mechanical model of a circular section of a tunnel roadway considering damage is established to improve the impact protection performance of the “roadway rock-support” system and provide a theoretical basis for designing coal mine impact ground ...
Zhi Tang +3 more
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Gong-kuang zidonghua, 2021 The roadway with dynamic pressure and high slope refers to the roadway which is seriously affected by dynamic pressure and has a high slope. This type of roadway not only experiences disturbances in the excavation process, but also has to experience the ...
SHEN Binxue +5 more
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Energies, 2021 This paper introduces a case study on the failure mechanism and support design of a roadway tunnel in the fault fracture zone of the 106 mining area in the Yuandian no.2 coal mine. Based on the on-site geological conditions (in-situ stress test, borehole
Kai Wang, Lianguo Wang, Bo Ren
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