相邻深基坑的连续墙受力数值分析与现场测试  

Numerical Analysis and Field Measurement of Force on Diaphragm Walls in Adjacent Deep Excavations

作　　者：陈江[1] 阳军生[1] 张学民[1] 欧雪峰[1] 

机构地区：[1]中南大学土木工程学院,湖南长沙410075

出　　处：《东北大学学报（自然科学版）》2017年第8期1189-1194,共6页Journal of Northeastern University(Natural Science)

基　　金：国家自然科学基金资助项目(51378505);中国中铁股份有限公司科技开发计划项目(2012-19)

摘　　要：以深圳地铁车公庙枢纽11号线车站基坑与换乘大厅基坑的地下连续墙为例,分析连续墙在开挖过程中的受力规律.在地下连续墙内埋置了混凝土应变计,对两基坑施工全过程的受力情况进行了现场测试,并对连续墙的安全性进行了评价.结合有限元软件ABAQUS进行分析,结果显示,共用连续墙受紧邻基坑开挖的影响明显,内力变化较大,而非共用连续墙受紧邻基坑开挖的影响较小,可以忽略.测试结果为深圳地区地铁车站工程建设提供参考.This paper focused on the study of shared diaphragm walls in the foundation pits of Chegongmiao station of Shenzhen subway line 11.During the study, typical tested section was selected, and concrete strain meters were embedded so as to carry out internal force test for diaphragm walls.Stability of the station structure was evaluated.The ABAQUS software was used to analyze it, and shared diaphragm walls were affected greatly by construction of adjacent excavation, and internal forces varied significantly, while other diaphragm walls were affected slightly by construction of adjacent excavation, and the effect could be ignored.In the end, it provides a reference for the construction of subway station in Shenzhen area.

关 键 词：现场测试 数值分析 共用地下连续墙 轴力 深基坑 

分 类 号：TU28[建筑科学—建筑设计及理论]