Comparison and Optimization of Foundation Pit Support Design Schemes for a Certain Project in Nanjing
This paper combines an example of a foundation pit support project in Nanjing to compare and select support design schemes with a small foundation pit scale and excavation depth of 8.75 m.Taking into account factors such as structural safety,construction convenience,construction period,and economy,a cantilever cast-in-place pile support scheme is determined.Based on the on-site groundwater situation during the construction stage of drilled cast-in-place piles,optimize the design of foundation pit dewatering to reduce costs.After engineering practice verification,the design of the foundation pit support scheme is reasonable and the actual effect is good.
foundation pit supportdesign scheme comparison and selectionoptimization of stopping precipitation