Analysis of deep foundation pit construction in subway adjacent to old residential buildings
The surrounding environment of subway deep foundation pit is complex,and controlling the deformation of existing buildings and surrounding environment becomes the focus of excavation engineering.This paper studies the deformation law of deep foundation pit enclosure structure and surrounding buildings in soft soil strata in Hangzhou,and explores the relationship between the lateral displacement of enclosure structure and the horizontal displacement of soil.The results show that the lateral displacement curve of enclosure structure is S-shaped,and servo steel support can reduce the lateral displacement of enclosure structure,but excessive axial force can cause the deformation of enclosure structure towards the outside of the pit.And there is a linear relationship between the lateral deformation of underground continuous wall and the horizontal deformation of soil.
deep foundation pitold residential buildingsdeformation analysisservo steel supportlinear relationship
NETL
NSTL
万方数据
