摘要
徐汇滨江恒基H地块项目基坑北侧有运营中的龙耀路隧道,南侧与西岸E地块、J地块共用地下连续墙,同时面临"软土地基、承压水影响、紧邻越江隧道、群坑施工"等诸多因素影响。对龙耀路隧道匝道口变形数据进行统计和分析,研究基坑施工期间各阶段南匝道沉降变化规律,结合隧道南匝道周边环境情况及地层损失法估算沉降变形量等相关理论,分析隧道变形异常的原因,为同地区类似邻近隧道的深基坑工程提供参考经验。
There is an operating Longyao road tunnel in the north of the foundation pit of Xuhui Binjiang Hengji plot H project,and the South shares the underground diaphragm wall with plots E and J on the West Bank.At the same time,it is affected by many factors such as"soft soil foundation,confined water,close to river crossing tunnel and group of foundation pits construction".Based on the statistics and analysis of the ramp deformation data of Longyao road tunnel,the settlement change law of the South ramp at each stage during the foundation pit construction is studied.Combined with the surrounding environment of the south ramp of the tunnel and the relevant theories of estimating the settlement deformation by the stratum loss method,the causes of the abnormal tunnel deformation are analyzed,so as to provide reference experience for the deep foundation pit engineering of similar adjacent tunnels in the same area.
作者
曹建中
CAO Jianzhong(Shanghai Construction No.1(Group)Co.,Ltd.,Shanghai 200120,China)
出处
《建筑施工》
2022年第1期168-171,共4页
Building Construction
关键词
深基坑
隧道变形
沉降异常
原因分析
deep foundation pit
tunnel deformation
abnormal settlement
cause analysis
