摘要
改革开放以来,随着经济的高速发展,城市化进程快速推进,城市人口数量激增,随之而来的交通压力也越来越大,地铁成为大城市的必要基础设施,更深,更窄,更大的基坑工程存在诸多危险因素,因此控制长条形深基坑的变形成为亟待解决的问题。基于此,本文以徐州地铁一号线为例,运用Flac3D有限差分软件,对比分析了长条形基坑在分区和整体开挖两种工况下围护结构的变形,得出一些结论,以供类似工程参考。
Since the reform and opening up,with the rapid development of the economy,the urbanization process has advanced rapidly,the number of urban populations has surged,and the traffic pressure has been increasing,the subway has become a necessary infrastructure for large cities.There are many risk factors in deeper,narrower,larger foundation pit engineering,therefore,controlling the deformation of long strip deep foundation pit becomes an urgent problem to be solved.Based on this,this paper takes Xuzhou metro line as an example,uses Flac3dD finite element software,compares and analyzes the deformation of the envelope structure under two kinds of working conditions of the long strip foundation pit in the zoning and the whole excavation,and draws some conclusions for reference of similar projects.
出处
《福建建设科技》
2019年第4期42-43,58,共3页
Fujian Construction Science & Technology
关键词
地铁
长条形基坑
分区开挖
有限元
Subway
long strip foundation pit
zoning excavation
finite element
