Numerical simulation study on mechanical response of tunnel dynamic construction

2018 International Conference on Civil and Hydraulic Engineering

土木建筑工程;水利工程

Hai, Zhang Yi^1

Department of Civil Engineering, University of Science and Technology Beijing, Beijing

100083, China^1

关键词: Construction process;    Dynamic construction;    Mechanical effects;    Mechanical response;    Numerical simulation studies;    Technical guidances;    Tunnel excavation;    Tunnel surrounding rock;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/189/5/052019/pdf
DOI  :  10.1088/1755-1315/189/5/052019

学科分类：土木及结构工程学

来源: IOP

【 摘 要 】

Using Lagrange finite difference method, detailed simulation of Beijing Chengde Expressway Hejiagou tunnel (NATM) of the whole construction process was carried out, the tunnel stability was analyzed, and tunnel excavation and excavation under tunnel excavation face space mechanical effect were compared. Based on the analysis of the above simulation results, the mechanical distribution law of tunnel surrounding rock is obtained, which provides a scientific basis and technical guidance for tunnel.