Analysis of the Impact of Deep Foundation Pit Excavation on Adjacent Subways in Complex Urban Environment
This paper takes a deep and large foundation pit project near a subway in the downtown of Hangzhouas an example,discusses the design methods for deformation control of foundation pitunder complex surrounding environments. The difficulty of this project lies in how to combine the partition excavation of foundation pit in the metro protected area with channel diversion. In the construction of the channel foundation pit,horizontal and vertical MJS( locally inserted with H-shaped steel) were pre-applied to reinforce soil,the main foundation pit a-dopted MJS and occlusal pilesas groove wall reinforcement measures of diaphragm wall. The measured data showed that the implementation of this project ultimately effectively controlled the deformation of the foundation pit body and the displacement of the subway. It can be used as a reference for relevant project design.
deep foundation pitcomplex environmentdeformation controlsubway facilitiesmonitor
NETL
NSTL
万方数据
