作　　者： ; ; ; ;

机构地区： 华南理工大学土木与交通学院

出　　处： 《科学技术与工程》 2009年第23期7222-7225,7250,共5页

摘　　要： 为了确保邻近地铁线路结构安全,检验基坑施工采用的特殊地铁保护措施是否达到要求,对基坑的施工过程进行了空间分析,计算结果表明在该基坑的施工过程中,隧道二次衬砌结构及车站结构处于安全状态,为工程施工提供依据。 A 3-dimensional analysis of the influence on existing nearby tunnel during the excavation processing is presented, which provide an estimate about the safety of tunnel structure and check the protection measures employed during the foundation construction. With the FLAC and ANSYS software, a 3-dimensional model was establiched which include all foundation（ including all structures MTR tunnel,foundation,soil,anchor,support structure）. With the numerical model, the excavation process is simulated. And the results show that the structure of the second lining and MTR station are safe during the excavation process.

关 键 词： 基坑开挖 邻近地铁 隧道衬砌

领　　域： [交通运输工程] [建筑科学]