Optimization of Foundation Pit Excavation Program Based on FLAC~(3D)

Various excavation programs for deep foundation pit engineering are separately numerically simulated using FLAC3D software in this paper.Different program is selected based on foundation pit to analysis its influence on the deformation of foundation pit respectively.This paper specially studies the influence law of different excavation programs for the same foundation pit on side wall,support pile,bottom heave and other deformations.Combined with construction practice and numerical analysis,the excavation program is designed and optimized to reasonably control deformation and thus minimize the impact on ambient environment,reduce project cost and ensure construction safety.