A deep foundation pit in Nanchang adopts the design of secant pile and internal support.Based on this case,considering the deformation of the support structure caused by the horizontal earth pressure of the soil during the excavation of the deep foundation pit,the finite element numerical simulation is used to compare and analyze the design scheme.The amount of the support structure deformation directly reflects the safety and reliability of the foundation pit support design.The analysis results show that the design scheme of the deep foundation pit engineering is reasonable,the numerical simulation is consistent with the design deformation data of the deep foundation pit,and the soil calculation parameters are reasonable,which can provide reference for similar deep foundation pit support design.
deep foundation pitstructural deformationsupport designnumerical simulation