Analysis on the Application of Deep Foundation Pit Excavation Support and Dewatering Scheme
Excavation of the deep foundation pit rich in confined water and phreatic water often causes side slope instability and sudden inrush at the bottom of the pit.Therefore,it is particularly important to design dewatering support for foundation pit.Taking a middle school project in Xiaodian District of Taiyuan City as an example,this paper introduces in detail the specific scheme of using composite soil nail wall support and double row cement soil mixing pile water stop curtain to reinforce deep foundation pit under the condition of confined water and surface phreatic water in the soil layer of the construction site,and analyzes the layout of the dewatering well,aiming at providing experience for similar engineering.
deep foundation pitexcavation supportcomposite soil nail wallwater stop curtaindewatering well
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