大断面隧道施工过程围岩-支护结构大变形分析

Large Deformation Finite Element Analysis on Construction Mechanics for a Large-cross Tunnel of Underground Interchange

结合某大断面隧道可行性研究,采用ADINA大变性非线性有限元分析软件,分析隧道动态施工过程的围岩大变形行为及支护结构力学特性,为大断面隧道设计、施工方案优化提供科学依据。

Combined feasibility study of a large tunnel,behaviors of surrounding rock large deformation and mechanical properties of support are analyses in course of large tunnel dynamic construction by using ADINA large deformation and nonlinear finite element software.The study can offer some scientific basis for design and construction scheme optimization of the large tunnel.