岩土工程学报Issue(z2)：404-411,8.DOI:10.11779/CJGE2014S2071
兰州市湿陷性黄土地区地铁车站深基坑变形规律监测与数值模拟研究
Monitoring and numerical simulation of deformation law of deep foundation pit of subway station in Lanzhou collapsible loess
摘要
Abstract
Taking the deep foundation pit of Shijidadao Station of the first-stage project of Lanzhou subway line No. 1 as background, the deformation monitoring plan of its supporting structures is introduced. The monitoring items, instruments and frequencies are formulated. The in-situ monitoring is completed. According to the monitoring results, the characteristics of deformation of piles and the surrounding soils of supporting structures with time are analyzed. The results show that the design of supporting structures and the monitoring plan are reasonable. The supporting structures of bored piles and interior support can control the deformation efficiently and ensure a safe construction of the subway station. At the same time, the method of FLAC3D is used to study the whole excavation process of the foundation pit. The calculated results are consistent with the monitoring data. This study may provide reference for the reasonable design and safety construction of deep foundation pits of subway in Lanzhou.关键词
地铁车站/深基坑/变形/监测/数值模拟Key words
subway station/deep foundation pit/deformation/monitoring/numerical simulation分类
建筑与水利引用本文复制引用
吴意谦,朱彦鹏..兰州市湿陷性黄土地区地铁车站深基坑变形规律监测与数值模拟研究[J].岩土工程学报,2014,(z2):404-411,8.基金项目
国家科技支撑计划项目（2011BAK12B07）；国家自然科学基金项目 （）
