Interaction between Finite Stiffness Broadened Heellong Pile and the Surrounding Soil

Abstract

Given formulation and solution of the problem of the interaction of the long pile with finite stiffness broadened heel and the surrounding soil analytical and numerical methods and their comparative analysis. Stress distribution between the pile side surface and the heel essentially depends on the physico-mechanical properties of the surrounding soil, as well as stiffness, the length and diameter of the pile. At a certain ratio of the amount of force in the pile shaft is reduced with varying intensity and depth of only 10-15% of the total force on the pile. To increase the share of the load on the heel of the pile is proposed to find the optimal ratio of the parameters of the pile and broadened heel in the given geological conditions in order to increase the proportion of the stress efforts on the heel of the pile. As for the design of the surrounding soil is considered elastic-plastic model with a tensile strength on the Coulomb-Mohr, and the material of the pile - linear deformable model.