Study on Lateral Bearing Capacity of Cantilever Rigid Piles under Large Horizontal Displacement

Abstract

In order to analyze the lateral ultimate bearing capacity of cantilever rigid pile with large horizontal displacement, this paper studies the distribution characteristics of soil resistance on the side of pile and the calculation method of lateral bearing capacity of pile foundation by means of numerical simulation and theory. The results show that under the condition of large displacement, the soil in front of the pile is yielded layer by layer from top to bottom, and when the soil layer on the side of the pile reaches the limit displacement, the soil resistance on the side of the pile no longer increases with the increase of displacement. The lateral ultimate bearing capacity of cantilever rigid pile under large horizontal displacement is fitted and calculated by using the ultimate displacement of pile side soil, in which the fitting effect of modified “m” method is the best, and the applicable range of foundation coefficient distribution needs to be further studied.