ABSTRACT

An analytical model of a deep foundation base is proposed to describe oscillations in the “pile–soil base” system. It is shown that in this case taking into account inertial forces of the pile and friction along its side surface results in non-periodic (non-harmonic) damped oscillations in the deep foundation. Analytical solutions of static and dynamic problems are applied with the use of a mechanical soil model to solve the problem on interaction between a pile and surrounding soil during vibration driving. The analytical solutions are found using Mathcad system. Comparing results of analytical calculations with numerical simulations is made using the geotechnical software package PLAXIS 2D involving the finite element method. The Mohr–Coulomb elastic plastic model was used to find a numerical solution for the problem of interaction between a pile and surrounding soil. Rheological parameters of soils that can be determined based on special field and laboratory studies are used in these calculations.