摘要
围绕杭州软土地区邻近地铁基坑工程展开研究,采用MIDAS/GTS软件三维模拟基坑开挖整个过程,分析了不同加固条件下基坑与隧道的变形。通过与实测结果比较,得出以下结论:水泥土搅拌桩门式加固可以有效降低隧道隆起,利用时空效应分块开挖有助于减少坑底隆起。
Based on the foundation excavation over the subway tunnel in Hangzhou, the whole process of foundation excavation was simulated by MIDAS/GTS software, the deformation of foundation and tunnel under different reinforcement conditions was analyzed. Cement mixing pile reinforcement effect was proved by measurement data. The results show that cement mixing pile reinforcement can decrease the tunnel＇s deformation significantly, stepped excavation contribute to control the foundation excavation resilience.
出处
《施工技术》
CAS
北大核心
2014年第1期87-90,共4页
Construction Technology
关键词
地下工程
软土
基坑
变形
有限元分析
underground
soft soil
foundation excavation
deformation
finite element analysis
