有限元模型在地铁车站基坑开挖变形分析中的应用研究
Applied Research of Finite Element Model in Deformation Analysis of Subway Station Foundation Pit Excavation
谢友鹏 1黄腾2
作者信息
- 1. 常州市测绘院,江苏常州 213003;常州市地理信息智能技术中心,江苏常州 213003
- 2. 河海大学地球科学与工程学院,江苏南京 210098
- 折叠
摘要
地铁车站基坑开挖的变形会产生施工安全隐患,探索其变形规律可有效降低施工风险,保障基坑安全.以常州地铁1号线新天地公园车站案例为研究背景,通过有限元分析法,采用修正的摩尔库伦模型(Mohr-Cou-lomb)模拟车站基坑开挖过程,对基坑周边土体的沉降、土层分层的沉降和车站地下连续墙的深层水平位移及沉降进行讨论分析,并和实际监测数据进行比对分析,得出模型分析方法的科学合理性,对类似地铁基坑开挖工作具有一定的指导意义.
Abstract
The deformation of foundation pit excavation of subway station will cause hidden trouble of construction safety.Exploring and studying the deformation law of foundation pit excavation of subway station can effectively reduce the construction risk and ensure the safety of foundation pit.Based on the case of Xintiandi park station of Metro line 1 in Changzhou,this paper simulates the foundation pit excavation of the station on the settlement of soil surrounding the foundation pit,the settlement of layered soil layer,deep horizontal displacement and settlement of diaphragm wall with modified Mohr-Coulomb model by finite element analysis.And through the comparison and analysis with the measured data,the model analysis method is proved to be scientific and reasonable and has guiding significance for the similar subway foundation pit excavation.
关键词
有限元/车站基坑/地下连续墙/模型/变形分析Key words
finite element/station foundation pit/underground diaphragm wall/model/deformation analysis引用本文复制引用
出版年
2024
NETL
NSTL
万方数据