Numerical analysis of secant pile supporting deep foundation pit based on ABAQUS
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.
foundation pit excavationocclusal pile supportnumerical simulationdeformation of foun-dation pit
万方数据
维普
