Abstract:To analyze the influence of supporting structure Caused by excavation methods, achieve the deformation law and loading characteristics of deep foundation pit retaining pile under different excavation step sequence, there simulate the process of foundation pit digging for Jiangbeicheng platform of No.6 railway in Chongqing during first phase project by the means of numerical analysis. The foundation pit is big and deep one by uni-axial way. Result shows that the calculated value and engineering coincided basically with the measured values, verify the validity of the numerical method, evaluated the feasibility of design and construction of deep foundation pit supporting structure scheme. This research conclusion can provide reference for similar project construction and design and guidance.
