Results 21 to 30 of about 64,796 (273)
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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Deformation Mechanism and Surrounding Rock Control in High‐Stress Soft Rock Roadway: A Case Study [PDF]
Advances in Civil Engineering, 2021 Stability control for soft and broken surrounding rock of roadways is one important segment of mining support. Taking 1412 Roadway of a mine in Guizhou province as a research background, this paper studies the large deformation of surrounding rock and the failure of bolts and cables.
Yuwen Gao +4 more
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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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Sustainability, 2023 The source of energy release when rockburst occurs must be determined to understand the mechanisms underlying disaster formation and achieve accurate prevention and control.
Zhenkai Ma, Sheng Li, Xidong Zhao
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Geomatics, Natural Hazards & Risk, 2023 The traditional index to determine the width of the stopping coal pillar (WSCP) is generally only the front abutment pressure, but the direction of the principal stress will deflect due to the mining action, which brings significant challenges to ...
Wenli Zhai +7 more
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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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Study on Deformation Characteristics of Surrounding Rock of Roadway with Coal–Rock Interface
Sustainability, 2023 Surrounding rock of roadway with a coal–rock interface is a common form in coal mines. In order to determine deformation characteristics and obtain the control principle of roadways with a coal–rock interface, the interface between the roof and coal seam was added to simulate the weak cohesion between the stratum.
Tuo Wang, Jucai Chang, Yijun Guo
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Sustainability, 2023 The random distribution of a complex joint network within a coal–rock mass has a significant weakening effect on its bearing capacity, making the surrounding rock of the roadway highly susceptible to instability and failure under the influence of in situ
Wenhai Wang +5 more
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Mathematics, 2022 In this study, taking the Sheng’an coal mine as an engineering background, the failure characteristics of the surrounding rock of a roadway under repeated mining in a close-distance coal seam is comprehensively illustrated through field measurements (e.g.
Y. Shang +5 more
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Scientific Reports, 2022 AbstractThe stability of surrounding rock with bolt support depends on the stability within the reinforcement range. To understand the reinforcing mechanism of a rectangular roadway bolt fully and accurately, a quantitative method for evaluating the stability of the surrounding rock of a rectangular roadway must be developed.
Shitan Gu, Pan WANG, Chao-Fan Yang
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