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Analyzed the Stability of Surrounding Rock and Simulated the Construction for Xi-Zhuang Tunnel of Tai Jia Highway

Author: WangCaiQin
Tutor: FanHuaiRen
School: Xi'an University of Science and Technology
Course: Geological Engineering
Keywords: Arch tunnel Stability of surrounding rock ANSYS Finite Element Simulation Xizhuang
CLC: U452.12
Type: Master's thesis
Year: 2011
Downloads: 32
Quote: 0
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Firstly, from the engineering geological factors affect the stability of surrounding rock of the tunnel to start West Zhuang tunnel surrounding rock deformation and failure mechanisms are analyzed and discussed . The development surrounding rock with the elastic-plastic nature of the geological characteristics of the deformation and failure of the tunnel for the tunnel structure of surface and thin sandwich main strength - stress control , and destroy the way of performance parts for top arch rifting slump and splitting flaking destruction ; Second , the combination of engineering practice , taking into account the specific engineering geological conditions the Xizhuang arch tunnel , according to the highway tunnel design specification \the cavity surrounding rock rock mass quality indicators [ BQ ] value of the reference index as the surrounding rock classification . Determine the West Village - arch tunnel surrounding rock level Ⅳ Ⅴ level ; then , the application of finite element ANSYS program through the establishment of the elastic-plastic model , deformation of the tunnel construction process simulation program to build three pilot tunnel double arched tunnel surrounding rock and the structure of the force , deformation law carried out a detailed analysis ; Finally, the establishment of a the spatial linear elastic model , affect each other , as well as the effect of the double-arch tunnel excavation space and around the hole in the wall deformation and stability of the simulation analysis , provide evidence and guidance for the design and construction of the double-arch tunnel in soft rock .

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CLC: > Transportation > Road transport > Tunnel project > Investigation, design and calculation > Survey > Tunnel wall rock surrounding soil testing and classification
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