路基工程Issue(3)：224-228,5.DOI:10.13379/j.issn.1003-8825.2018.03.47
基于PLAXIS 3D技术的深基坑开挖对既有地铁结构影响分析
The Influence Analysis of Deep Foundation Pit Excavation on the Existing Subway Structure Based on PLAXIS 3D Technology
于升才1
作者信息
- 1. 中国铁路设计集团有限公司,天津 300251
- 折叠
摘要
Abstract
The excavation process of foundation pit of a project adjacent to the existing subway structur was simulated using the finite element analysis software PLAXIS 3D and the change rule of the even wall displacement and the influence of excavation on the deformation of the existing subway structure was analyzed. The result showed that: the ground surface settlement outside the pit caused by the excavation of the foundation pit occurred in the middle part of the long side of foundation pit, the deformation mode of the enclosure structure is"inner convex type"after excavation of the foundation pit to the bottom of the pit. The maximum horizontal deformation occurred near the pit bottom in the middle part of the long side of the foundation pit.关键词
深基坑/地铁结构/有限元分析/围护结构/地铁区间Key words
deep foundation pit/subway structure/finite element analysis/enclosure structure/metro section分类
建筑与水利引用本文复制引用
于升才..基于PLAXIS 3D技术的深基坑开挖对既有地铁结构影响分析[J].路基工程,2018,(3):224-228,5.
