Squeezing Effect of Pile in Hard Layered Soil

Abstract:

The squeezing effect of the pile penetration into soil is complicated. 2-dimensional axisymmetric finite element model is established with ABAQUS software for the pile penetration into hard layered soil and homogeneous soil. By the analysis and the comparison, the variation laws of special displacement field and stress field of single pile penetration into hard layered soil are obtained. The analysis shows that in the process of pile penetration into hard soil, the horizontal displacement dramatically changes between hard and soft soil layer junction. In hard soil layer, the horizontal and vertical displacements are limited, the horizontal compressive stress is obviously larger than in homogeneous soil; compared with horizontal stress, the vertical compressive stress is obviously smaller.