深基坑开挖对既有地铁车站影响的计算模式分析

Calculation Mode Analysis About Influence of Deep Excavation on Existing Metro Station Nearby

城市地铁沿线建设不可避免地会遇到深基坑工程问题。针对深基坑开挖对邻近既有地铁车站的影响 ,提出一种弹性地基上的板壳有限元计算模型 ,并通过对即有车站板下结构土体整体变位和单独考虑底板下土压力方案的对比分析 ,对模型中土压力的作用方式进行了分析。

With the development of city subway construction,the problem of deep excavation nearby avmetro line will be unavoidable.For the influence of deep excavation on the nearby existing subway station,a finite element calculation mode of flat shell on elastic foundation is proposed.By the comparative calculation of two projects,the soil pressure form actting on the mode is analyzed.