摘要
以重庆市轨道交通六号线大剧院站工程为依托,采用MIDAS-GTS进行数值建模研究车站两侧超深基坑开挖及支护对其变形的影响模式,分析不同的开挖、支护方式对轨道结构的影响程度。通过分析计算可以得出:两侧同时开挖支护对轨道交通结构变形控制较有利,对于高度超过30 m的超深基坑采用"分阶退台"的支护方式,可有效控制坡体变形。
Based on the Grand Theatre station project of Chongqing metro line six,a numerical model MIDASGTS is used to study the influence of the deep foundation pit excavation and support on the deformation of the station. Through the analysis and calculation,it can be concluded that the simutaneous excavation and support on both sides is more favorable to the structural deformation control of the rail transit,and the supporting method of'sub step back stage'for the deep foundation unre than 30 m. can effectively control the deformation of the slope.
出处
《地下空间与工程学报》
CSCD
北大核心
2015年第S2期629-636,共8页
Chinese Journal of Underground Space and Engineering
关键词
深基坑
城市轨道交通
数值模拟
相互影响
deep foundation pit
urban rail transit
numerical simulation
interaction
