摘要
收集了苏州地铁一号线23座车站深基坑的详细监测资料,在对大量实测数据统计分析的基础上,系统分析了苏州地铁一号线深基坑的变形特性;给出了三种典型围护结构-地连墙、咬合桩和SMW围护桩的侧移、墙后地表沉降变化范围及平均值,并与其他地区的统计数据进行了比较;并进一步分析了软弱土层厚度、墙体入土深度对基坑变形的影响。分析得到的若干规律性结果,可为本地区后续地铁工程的建设提供参考。
Deformation behavior of deep excavations was analyzed based on a database of 23 case histories from the stations of Suzhou Subway Line 1. The monitoring data of three support methods,including diaphragm wall,secant pile and SMW method were presented. The deformation properties of the range and average values of lateral wall displacement,ground surface displacement,were investigated and then compared with results in other areas. The influence factors on deformation of deep excavation were also studied,including the thickness of soft soil and the depth of retaining walls. Some conclusions drawn from this analysis can be helpful to similar engineering.
出处
《地下空间与工程学报》
CSCD
北大核心
2013年第S2期1961-1965,共5页
Chinese Journal of Underground Space and Engineering
基金
十二五国家科技支撑计划项目(2012BAJ01B02)
关键词
地铁
深基坑
围护结构
变形性状
subway
deep excavation
supporting structures
deformation behavior
