Based on ABAQUS numerical analysis software,the stiffness equivalent principle is used to e-quivalent the occlusive pile supporting a deep foundation pit.The deformation of the pit bottom heave dur-ing unloading,the displacement of the support structure,and the variations in axial force of support in the unloading process of foundation pit excavation are analyzed numerically.A comparative validation is con-ducted using actual monitoring data.The results show that the stiffness equivalent principle can effectively capture the deformation characteristics of the foundation pit.The deformation results of the supporting structure and the surrounding environment obtained by the numerical analysis are in good agreement with the actual monitoring values.Therefore,this method can serve as the guidance for the actual construction of the foundation pit.
关键词
基坑开挖/咬合桩支护/数值模拟/坑底隆起变形
Key words
foundation pit excavation/occlusal pile support/numerical simulation/deformation of foun-dation pit
维普
万方数据