基坑开挖对下方地铁隧道结构影响的分析  

Influence of Excavation of Foundation Pits on Adjacent Subway Tunnels in the Underground Space

作　　者：刘晨[1] 张季超[1] 

机构地区：[1]广州大学土木工程学院,广州510006

出　　处：《地下空间与工程学报》2010年第A01期1390-1392,1431,共4页Chinese Journal of Underground Space and Engineering

基　　金：国家"十一五"科技支撑计划资助项目--城市地下空间建设工程化技术开发(编号2006BAJ27B05)

摘　　要：城市化的快速发展促使城市建设中的地铁隧道和基坑工程规模的不断加大,针对城市建筑密集区域存在的基坑开挖对下方地铁隧道产生的环境岩土问题,结合广州地铁珠江新城站区段,参照既有的计算分析的结果,归纳了防止基坑开挖时下方盾构隧道结构变形过大的措施,可供类似工程参考。Rapid urbanization process brings development of large-sc.,de foundation pit engineering and subway tunnel in the city. In view of some geoenvironmental problems due to negative impact of foundation excavations on adjacent existing subway tunnels below in congested urban district of large cities,a calculation analysis is given combined with the construction work at Zhujiang New Town station section of Guangzhou metro line 5, the inductive measures to prevent the large structural deformation of shield tunnel due to foundation pit excavation were given, which can provide reference to similar engineering.

关 键 词：地下空间 环境岩土工程 基坑开挖 地铁保护 

分 类 号：TU93[建筑科学—结构工程]