Results 191 to 200 of about 163,434 (247)
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Deformation Simulation of Surrounding Rock at Faulted Zone during Roadway Drivage
Advanced Materials Research, 2011Sometimes transportation roadways needed to go through the water-conducted normal fault with high dip and big fault throw in order to ensure the mining continuance, the two key factors were fault water and deformation of surrounding rock which influenced the digging safety and stabilization of roadways. On the base of analyzing clearly the FB11fault in
Yue Ming Qi +3 more
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International Journal of Rock Mechanics and Mining Sciences, 2021
Abstract This paper proposes a new analytical solution of the constant resistance of Constant-Resistance-Large-Deformation (CRLD) bolt. The solution incorporates two novel developments: (i) a new solution of the constant resistance based on the thin-walled circle ring theory with the consideration of surrounding rock pressure; and (ii) a new analysis
Bo Wang, Manchao He, Yafei Qiao
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Abstract This paper proposes a new analytical solution of the constant resistance of Constant-Resistance-Large-Deformation (CRLD) bolt. The solution incorporates two novel developments: (i) a new solution of the constant resistance based on the thin-walled circle ring theory with the consideration of surrounding rock pressure; and (ii) a new analysis
Bo Wang, Manchao He, Yafei Qiao
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The Automatic and Real Time Measurement of Tunnel Surrounding Rock Deformation
Applied Mechanics and Materials, 2013We designed a tunnel surrounding rock(TSR) deformation automatic and real time measurement system .The long distance laser datum line instrument (LDLI) is fixed in stable ceiling rock of the tunnel. The LDLI transmits a bunch of lateral linear benchmark beam with small facula, and projects to the linear array CCD which mounted on instable surrounding ...
Jia Cheng Cai, Yan Tang Huang, Yu Huang
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Forecast Study on Large Deformation of Surrounding Rocks in Mountain Tunnels
Applied Mechanics and Materials, 2012Shilin tunnel is a separated bi-directional four-lane highway tunnel, and its distinctive geological conditions and fault structure result in frequent geological disaster like large deformation. Construction of tunnels were seriously hampered, and the project was delayed, and the cost increases simultaneously.
Guo Hua Zhang +2 more
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European Journal of Environmental and Civil Engineering, 2018
To investigate the surrounding rock deformation and fracture mechanism of mixed-face ground under tunnel boring machine (TBM) tunnelling, tests of a mixed-face ground model with TBM tunnelling were conducted by using a self-developed 3D large-scale ...
Hui Zhou +4 more
semanticscholar +1 more source
To investigate the surrounding rock deformation and fracture mechanism of mixed-face ground under tunnel boring machine (TBM) tunnelling, tests of a mixed-face ground model with TBM tunnelling were conducted by using a self-developed 3D large-scale ...
Hui Zhou +4 more
semanticscholar +1 more source
Deformation prediction of tunnel surrounding rock mass using CPSO-SVM model
Journal of Central South University, 2012A new method integrating support vector machine (SVM), particle swarm optimization (PSO) and chaotic mapping (CPSO-SVM) was proposed to predict the deformation of tunnel surrounding rock mass. Since chaotic mapping was featured by certainty, ergodicity and stochastic property, it was employed to improve the convergence rate and resulting precision of ...
Shao-jun Li +2 more
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Chaotic time series prediction for surrounding rock’s deformation of deep mine lanes in soft rock
Journal of Central South University of Technology, 2008Based on the measured displacements, the change laws of the effect of distance in phase space on the deformation of mine lane were analyzed and the chaotic time series model to predict the surrounding rocks deformation of deep mine lane in soft rock by nonlinear theory and methods was established.
Xi-bing Li +3 more
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Canadian geotechnical journal (Print)
In order to study the problems of large deformation of surrounding rock and water-rich dense fracture zones during tunnel construction through fault fracture zone, the NPR anchor cable control method is studied based on the Tabaiyi tunnel.
Zhigang Tao +5 more
semanticscholar +1 more source
In order to study the problems of large deformation of surrounding rock and water-rich dense fracture zones during tunnel construction through fault fracture zone, the NPR anchor cable control method is studied based on the Tabaiyi tunnel.
Zhigang Tao +5 more
semanticscholar +1 more source
Deformation of Thawed Surrounding Rock During Tunneling in Permafrost
Soil Mechanics and Foundation Engineering, 2023J. Zhang, W. Zhou, Z. Meng
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