Optimization design of pre-reinforcement scheme for large cross section shallow buried tunnel in Xi'an Metro

In order to control the deformation of the surrounding rock of the large section of the tunnel, the author analyzes the stratum displacement law caused by the tunnel excavation by means of on-site monitoring. And the optimized design of the existing tunnel pre-reinforcement scheme is carried out. Th...

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Bibliographic Details
Published inIOP conference series. Materials Science and Engineering Vol. 231; no. 1; pp. 12101 - 12107
Main Authors Xiao-mei, Gao, Jian-bo, Dai
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.09.2017
Subjects
Deformation effects
Design optimization
Field tests
Reinforcement
Tunnels
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ISSN1757-8981
1757-899X
DOI10.1088/1757-899X/231/1/012101

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Summary:In order to control the deformation of the surrounding rock of the large section of the tunnel, the author analyzes the stratum displacement law caused by the tunnel excavation by means of on-site monitoring. And the optimized design of the existing tunnel pre-reinforcement scheme is carried out. The FLAC3D numerical simulation method is used to verify the feasibility of the pre-reinforcement optimization scheme. Field test showed that the tunnel surrounding rock deformation in the allowable range, and the deformation control measures of the surrounding rock are reasonable and effective. The research results have important guiding significance for future similar project.
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ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/231/1/012101