摘要
基于某偏压公路隧道的设计、施工以及地质情况,采用有限元软件midas模拟CD法不同顺序开挖隧道的施工过程,对比分析围岩位移以及支护内力情况。结果表明:从埋深小的一侧开挖比从另一侧开挖的隧道围岩位移、支护内力值都要小。最后经过综合分析,确定了从埋深大的一侧导坑开挖为优选方案,可为同类隧道的设计、施工和研究提供有益的借鉴和参考。
According to the design,the construction and the geological condition of one unsymmet- rical road tunnel ,The simulation is carried out by midas to study the displacements of surrounding rock and the Internal force of supportingstructure in CD method. The simulation results indicate that both the displacements of surrounding rock and the Internal force of supporting are smaller with excavating tunnel from the shallow side by comprehensive analysis, excavating tunnel from the shallow side is the optimal- choice. This study aims to provide reference to similar tunnel design and construction.
出处
《公路工程》
北大核心
2013年第2期137-141,共5页
Highway Engineering
关键词
偏压隧道
大断面
CD法
数值模拟
Bias tunnel
Large section
CD method
Numerical Simulation
作者简介
李杨（1979-），男，北京人，硕士，工程师，主要研究方向为桥梁工程、道路规划与设计。
