Results 11 to 20 of about 597,919 (179)
Presplitting Blasting the Roof Strata to Control Large Deformation in the Deep Mine Roadway
Advances in Civil Engineering, 2020 As the mining depth increases, under the influence of high ground stress, the surrounding rock of deep mine roadways shows soft rock characteristics.
Chaowen Hu +3 more
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Meikuang Anquan, 2021 In order to solve the problem of large deformation of Jijianao ventilation shaft roadway in Xinyuan Mine, the nature of the surrounding rock of the ventilation shaft roadway was studied. The deformation and failure mode of the roadway was systematically
YANG Yong
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Study on Presplitting Blasting the Roof Strata of Adjacent Roadway to Control Roadway Deformation
Shock and Vibration, 2019 In order to solve the problem of roadway deformation based on the theory of “short cantilever beam by roof cutting,” the method of “pressure relief by roof cutting in the adjacent roadway” is proposed.
Xiaojie Yang +7 more
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Energy Science & Engineering, 2020 The efficiency of coal mining is seriously affected by roadway stability, as large time‐dependent deformation of roadway frequently occurs and needs to be maintained several times during its service life.
Yuantian Sun, Guichen Li, Junfei Zhang
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A deformation monitoring method for coal mine roadway based on 3D laser scanning
Gong-kuang zidonghua, 2023 The traditional monitoring methods for coal mine roadway deformation have problems such as incomplete data collection, non intuitive data format, poor precision, and inability to achieve continuous monitoring of the entire roadway deformation.
DAI Wenxiang +5 more
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Applied Sciences, 2023 Reused roadways are increasingly adopted in fully mechanized coalfaces with large mining heights because of the ventilation and gas drainage problems. However, the forced mechanism and grouting control technology of the reused roadway was seldom studied.
Leilei Zhao +5 more
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Research and Application of Support Design for Soft Rock Roadway in Strongly Weathering Zone
Meikuang Anquan, 2020 To solve the problems of large deformation and supporting difficulties in soft rock roadway in strongly weathering zone, and taking the soft rock roadway along the wind oxidation zone edge of No.
ZHENG Wenxiang, DU Dengji, BAO Xiankai
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Research on deformation control of roadway in reverse fault fracture zone of Tunbao Coal Mine
Gong-kuang zidonghua, 2020 In reverse fault fracture zone of Tunbao Coal Mine, the coal pillar side roadway is affected by mining, which leads to large roadway deformation, roadway floor heave, coal pillar side wall heave, and local subsidence of roadway roof.
LIU Ming, CAO Minyuan, WU Yuhai, LI Bo
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Supporting optimization of thick seam roadway with top coal based on orthogonal matrix analysis
Scientific Reports, 2023 Aiming at the problem of large deformation and difficulty in surrounding rock control of the top coal roadway in thick seam, theoretical analysis, theoretical analysis, numerical simulation, orthogonal matrix analysis and other methods were used to study
Ce Jia +6 more
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Mining safely under a coal seam while protecting an overlying roadway
工程科学学报, 2022 To ensure the stability of an overlying roadway in close proximity to a 1000-m deep coal seam, this work, through theoretical analysis and numerical simulation, studies the deformation and failure mechanism, failure types, and prevention methods of the ...
Chao ZHOU +4 more
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