Results 31 to 40 of about 2,183,848 (145)
Yantu gongcheng xuebao, 2020 In the process of the excavation of underground powerhouse caverns at the right bank of Baihetan Hydropower Station, which is the world largest underground powerhouse in term of span, the surrounding rock at the roof arch from section 0 + 076 m to 0+133 ...
MENG Guo-tao 1, 2, HE Shi-hai 1, CHEN Jian-lin 1, WU Jia-yao 1, 2, CHEN Ping-zhi 1, 2, DUAN Xin-ping 3
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Prevention of Large Deformation of Soft Surrounding Rock in Tunnel Construction
Journal of Measurements in Engineering, 2023 Large deformation of surrounding rock makes the internal space of a tunnel cannot meet the requirements of normal use after support, even leads to the instability of surrounding rock and destruction of the tunnel structure. In order to optimize the parameters of the primary support to control the deformation of surrounding rock, field tests and ...
Xiaoqing Suo +4 more
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Advances in Civil Engineering, 2020 In view of the large deformation of thin-layer soft rock in the No. 2 inclined shaft of the Muzhailing Tunnel, we performed an experimental investigation on the mineral composition, physical characteristics, and uniaxial compressive strength of the ...
Xiulian Zhang +5 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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Research on Deformation Control Measures of Surrounding Rock in Soft Rock Tunnel
IOP Conference Series: Earth and Environmental Science, 2021 Abstract In order to study the control measures of soft rock tunnel surrounding rock deformation, based on the restraint effect of shotcrete anchor support on it, a support model was constructed, and numerical simulation was used to compare and analyze the restraint effects of different bolts controlling the surrounding rock deformation.
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, 2021 To study the occurrence process, as well as the temporal and spatial evolution laws, of rockburst disasters, the roof deformation of continuous heading roadways during rockburst was studied through a physical similarity simulation test with a high ...
Yaobin Shi +4 more
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Advances in Civil Engineering, 2022 Aiming at solving the problem of asymmetric deformation, failure, and stability control of surrounding rock caused by the excavation of deep super large section soft rock chamber group passing through multilayer strata, taking super large section soft ...
Shengrong Xie +3 more
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Yantu gongcheng xuebao, 2023 There is a complex nonlinear relationship between the deformation of the surrounding rock of tunnels and the mechanical parameters of rock mass, which is the most intuitive expression for change of state of the surrounding rock, and is also an important ...
WANG Shuhong , DONG Furui
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Applied Sciences, 2023 In constructing high-geo-stress soft rock tunnels, the major deformation disaster of the surrounding rock has always been the main problem faced during construction.
Dong Ma +4 more
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Study on instability failure mode and monitoring early warning standard of surrounding rock in fully weathered argillaceous sandstone section of large section tunnel [PDF]
E3S Web of Conferences, 2019 Based on the special geological conditions of a tunnel in Qingyuan section of Huizhou-Zhanzhou Expressway, FLAC3d numerical simulation software is used to simulate the rheological properties and instability of surrounding rock in large-section fully ...
Zhao Ming +3 more
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