【作者】 贺美德； 刘军； 乐贵平； 萧岩；

【Author】 HE Mei-de, LIU Jun, LE Gui-ping, XIAO Yan ( Beijing Municipal Engineering Research & Institute, Beijingl00037,China; Beijing MRT Construction administration Corporation,Beijingl00037,China)

【机构】 北京市市政工程研究院； 北京市轨道交通建设管理有限公司；

【摘要】 以北京地铁5号线某区间平顶直墙隧道过四环暗挖段为背景,介绍了其施工方法。基于CRD法施工引起的地层损失和应力变化进行分析,并进行了二维有限元数值模拟的施工力学行为研究,结合现场监测结果的对比分析,对将来工程具有指导意义。更多还原

【Abstract】 Based on a section of tunnel in Line 5 of Beijing subway, the analysis was taken on ground loss and the stress chang induced by CRD construction method.The mechanical behavior of the CRD tunnel construction was studied by using FEM 2D-σ numerical simulation. Combining the analysis and comparison with the site measurement results,this paper has guiding value for the future construction.更多还原