某复杂条件下地下室拆除后基坑加深工程案例  

A CASE OF FOUNDATION PIT DEEPENING PROJECT AFTER BASEMENT DEMOLITION UNDER COMPLEX CONDITIONS

作　　者：卓志飞 付文光 周凯 龚文耀 ZHUO Zhi-fei;FU Wen-guang;ZHOU Kai;GONG Wen-yao(Guangdong Zhongmei Jiangnan Engineering Survey and Design Co.,Ltd.,518000,Shenzhen,Guangdong,China;Shenzhen GeokeyGroup Co.,Ltd.,518000,Shenzhen,Guangdong,China)

机构地区：[1]广东中煤江南工程勘测设计有限公司,广东深圳518000 [2]深圳市工勘岩土集团有限公司,广东深圳518000

出　　处：《建筑技术》2023年第13期1582-1586,共5页Architecture Technology

摘　　要：以地铁旁边旧3层地下室拆除后基坑加深为实例,分析了周边环境情况及对地铁的保护措施,确定了基坑支护方案,并对基坑进行了三维有限元位移分析和二维参流分析,对地铁起到了较好的保护作用。实施和监测结果表明,整个基坑支护体系处于稳定状态,为以后的类似工程设计提供了参考。Taking foundation pit deepening after demolition of an old three-storey basement beside a subway as an example,the surrounding environment and subway protection measures were analyzed,and a foundation pit support scheme was determined.Moreover,3D finite element displacement analysis and 2D seepage analysis were conducted on the foundation pit for better subway protection.Implementation and monitoring results show that the entire foundation pit support system is in a stable state,thus providing a reference for similar engineering designs in the future.

关 键 词：旧地下室 拆除 内支撑 基坑加深 嵌固稳定性 地铁隧道 

分 类 号：TV551[水利工程—水利水电工程]