基于ANSYS分析不同截面的地铁隧道开挖变形和应力分布  

Analysis of Deformation and Stress Distribution of Metro Tunnels with Different Cross-sections Based on ANSYS

作　　者：田运朋 Tian Yun-peng

机构地区：[1]中铁十四局集团第四工程有限公司,济南250000

出　　处：《建筑技术开发》2021年第6期79-81,共3页Building Technology Development

摘　　要：地铁隧道是城市地下工程发展的基础工程,地铁隧道良好的稳定性对城市地下空间发展的安全起着至关重要的作用。采用ANSYS有限单元法分别对相同的掘进断面的圆形、拱形、矩形和梯形的隧道开挖时的变形和主应力分布进行计算和分析;研究不同形状断面的隧道开挖时的变形大小和应力分布状况;针对不同形状断面的隧道变形和应力集中情况进行对比。The subway tunnel is the basic project for the development of urban underground engineering.The good stability of the subway tunnel plays a vital role in the safety of urban underground space development.In this paper,the ANSYS finite element method is used to calculate and analyze the deformation and principal stress distribution of the circular,arch,rectangular and trapezoidal tunnels with the same driving section.Study the deformation and stress distribution of tunnels with different shapes and sections,and compare the deformation and stress concentration of tunnels with different shapes and sections.

关 键 词：地铁隧道开挖 变形分析 应力分布 ANSYS 

分 类 号：TU99[建筑科学—市政工程]