Interaction of a Long Pile with a Multilayer Soil Mass, Taking into Account Hardening

Abstract

AbstractThe article describes the formulation and solution of the problem of the interaction of a long pile with the surrounding multilayer and underlying soils, taking into account the rheological properties of the surrounding soil mass. The creep process is considered taking into account hardening. The problem was considered in a linear setting. The solution is presented using analytical method. To describe the creep process, the rheological hardening parameter was used. An expression was obtained to find the reduced shear modulus for a multilayer soil mass. Analytical solutions in the article are supported by a graphic part. The article presents the graphs of the dependence of the pile settlement and the force on the pile toe cutting through alternating layers on time for various parameters of viscosity with a variable parameter of hardening. The solutions obtained can be used to preliminary determine the movement of a long pile with the surrounding multilayer and underlying soils. The rate of change in stress under the pile toe depends on the viscosity of the soil. The rheological hardening coefficient significantly affects the time of stabilization of the pressure under the pile toe, as well as the time of stabilization of the pile settlement. The dependencies obtained in this article make it possible to predict the development of settlement over time.KeywordsPile interactionMultilayer and underlying soilsAnalytical methodReduced modulusRheological propertiesHardening factor