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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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Abstract


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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