Single Pile Analysis Based on Strain Increment Iteration

Abstract:

Combined with the basic assumption of load transferring method, an iterative algorithm was established for analyzing the deformation and axial force of pile shaft in layered soil. Given the settlement of pile top, the displacement, axial force and strain of pile shaft could be obtained through integrating the strain of pile shaft and the spring force of soil around pile. The procedure for iteration was dominated by the strain increment convergence of pile shaft. Then the pile side friction resistance, pile tip resistance and load on pile top were also obtained. A case study indicates that the proposed method has good adaptability with various load transferring functions and is generally in good agreement with the field observed values and calculated results from other approaches.