Analysis on the Influence of Deep Foundation Pit Excavation Close to the Common Underground Wall of Subway Station on the Existing Subway Structure
Based on the newly-built foundation pit en-gineering close to the West Zhongshan Road Station on Guiyang Rail Transit Line 1,the deformation law of the existing subway structure during the excavation of the deep foundation pit close to the common underground wall of the subway station is obtained by numerical simulation through the finite element software:during the excavation of the foundation pit,the subway structure tilts towards the direction of the foundation pit,the maximum deformation is the horizontal displacement from the top and middle of the common underground wall to the direction of the foundation pit,the bottom of the common underground wall and the side wall of the track area have a small hori-zontal displacement opposite to the foundation pit,and the ground surface near the common underground wall has a small settlement,and the bottom plate structure and the ballast bed have a small amount of uplift.After comparing the results of numerical simulation and field monitoring,relevant suggestions and measures are put forward.
deep foundation pit deformation monitoringexisting subway stationcommon underground walldeep foundation pit excavation
NETL
NSTL
万方数据
