天津某半逆作深基坑对临近地铁影响分析

Analysis of the Influence of a Semi Inverse Method Deep Foundation Excavation on the Nearby Metro in Tianjin

基于ABAQUS软件平台,全过程进行弹塑性有限元计算,详细地展现了半逆作的支护形式开挖至基底后支护墙体及地铁结构的变形趋势,并与地铁结构相应控制数据做对比。通过有限元计算,分析此项目采用半逆作形式的支护结构,是否对基坑及周边的变形起到有效控制,为以后类似工程提供重要经验。

This paper is based on ABAQUS software platform,elasto-plastic finite element calculation in the whole,process,the deformation trend of supporting wall and Metro structure after excavation of semi-reverse support form to basement is presented in detail,and contrast with corresponding control data of Metro structure.Finite element calculation,analysis of support structure with semi inverse method in this project,effective control of foundation pit and surrounding deformation,Provide important experience for similar projects in the future.