摘要
通过Phase2软件,对圆形隧道开挖过程中围岩的变形和衬砌结构内力进行了分析,确定了满足收敛约束法原理的二衬支护时机和满足安全系数为1.4的支护方案,并给出了其具体的应用步骤,该分析方法为定量设计和改进隧道二衬支护方案提供了新思路。
This paper uses Phase2 software to analyze the deformation and lining structure internal force of the surrounding rock for a circular tun-nel. The secondary lining support timing and the support scheme with 1.4 safety factor are determined based on the convergence constraint meth-od. The analytical method provides a new idea for the design and improvement of the secondary lining support.
出处
《山西建筑》
2016年第34期156-158,共3页
Shanxi Architecture
关键词
隧道
收敛约束法
开挖模拟
安全系数
支护方案
tunnel, convergence-confinement method, excavation simulation, safety factor, support scheme
