Results 11 to 20 of about 11,904 (295)
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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Stress and Deformation Characteristics of Tunnel Surrounding Rock under Alteration
Sustainability, 2023 Based on a typical project in an altered rock area, this study carried out numerical simulations using the FLAC3D software to calculate the changes in the stress field, deformation field, and plastic zone of the surrounding rock during the unsupported and supported excavation of a water transfer tunnel.
Yapeng Chen +5 more
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Deformation and Failure Mechanism of Surrounding Rock in Mining‐Influenced Roadway and the Control Technology [PDF]
Shock and Vibration, 2021 Aiming at the problem of surrounding rock deformation and failure of mining roadway and its control, a mechanical model of the circular roadway under the mining environment is established, and the implicit equation of the plastic zone boundary is derived.
Jicheng Feng +6 more
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Energy Exploration & Exploitation, 2023 Severe deformation of surrounding rock and excess-gas are the main problems faced in mining of high-gas coal seam. This paper analyzes the deformation characteristics and mechanical model of surrounding rock in high-gas coal seam, and proposes the ...
Hainan Gao +4 more
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Applied Sciences, 2023 Aiming at the problem of serious deformation and difficult support in the surrounding rock of the near-vertical coal–rock-interbedded roadway, this paper studies the stress distribution characteristics of the roadway surrounding the rock based on the engineering geological conditions of the Wudong coal mine, in particular with the +400 level B8 ...
Yanqiang Yao +3 more
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Fracture distribution and deformation mechanism of surrounding rock in two-way extremely unequal pressure soft rock roadway [PDF]
Meitan xuebaoThe failure of butterfly plastic zone in roadway surrounding rock is an important reason for the large deformation of roadway surrounding rock. In recent years, it has attracted the attention of roadway support workers.
Weijun WANG +5 more
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Enhancing mechanical characteristics of soft rock tunnel surrounding rock through radial yield pressure system [PDF]
Shuiwen dizhi gongcheng dizhiThis study investigated the efficacy of radial yield support as an active measure to mitigate stress and deformation in deep soft rock tunnels experiencing large deformation.
Qiuyu CHEN +7 more
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Control techniques for creep deformation of surrounding rock in deep underground roadways
PLOS OneAs resource extraction extends to greater depths, surrounding rock in deep underground roadways exhibits pronounced creep deformation due to the coupled effects of high in-situ stress and time-dependent behavior. Conventional support systems face significant challenges in maintaining long-term stability under such conditions.
Lijie Ge +5 more
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Applied SciencesTo reveal the deformation patterns of the surrounding rock in deeply buried straight-wall arch-shaped roadways under seepage action, this study, based on an FLAC3D numerical simulation and classic elastoplastic theory, investigates the influences of ...
Xuebin Xie, Liang Li
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The Relationship Between the Manifestations of Rock Pressure and the Relative Deformation of Surrounding Rocks [PDF]
E3S Web of Conferences, 2017 On the basis of analysis of the manifestations of the rock pressure in domestic and abroad practice the authors have the aim to research above named manifestations in conditions of new coal deposits of Kuzbass (Erunakovskoe, Kazankovskoe etc.) and to form the normative document for mining in these conditions.
Kostyuk Svetlana +3 more
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