Method justification for calculating the final setting of injection pile in clay soil

Abstract

Method of final setting calculation for a single injection hanging pile 3 to 5 m length in clay soils is proposed. The method is based on the separate work of the lower end and the lateral surface of the injection pile; it takes into account the linear and non-linear dependencies of its setting from external load. The method takes into account the stages of the well formation by the injector pressing, its radial expansion during the concrete injection, and the physical and mechanical characteristics improvement of the soil around the injection pile barrel at its construction stage. The obtained results are considered as an approach to solving a complex task of estimating the deformations of individual and strip foundations after their strengthening with injection piles under buildings reconstruction. It can be used to predict the buildings foundations setting under new construction.