BEARING CAPACITY OF DRILLING PILLS ON SAVED SOILS BY NUMERICAL METHOD OF BOUNDARY ELEMENTS

Abstract

Currently, bored piles are used on large strata of loess subsidence soils. Large diameter bored piles make it relatively easy to cut significant thicknesses of subsidence soils, dig deeper into stronger soils and transfer loads from the structure to them, and build foundations at any time of the year. The topic of the work is devoted to the topical problem of foundation construction and soil mechanics - elastic-plastic modeling of joint work of the system "soil base - brown pile" to determine the bearing capacity of the foundation to ensure stability and low subsidence of the structure, thus avoiding its possible uneven subsidence or destruction. The presence of pores in three-phase soils make it possible to obtain freedom of movement.

Soil particles can move into the pores from the places of temporary dislocation. The main characteristic feature of soil behavior is that their deformation is accompanied by plastic deformation almost from the beginning of their load, which determines the use of modern theory of plastic flow in the calculation of soil bases. Intensive development and widespread use of computers have significantly brought fundamental mathematical problems closer to applied ones, strengthened their interaction. The emergence of a new powerful method of research - numerical experiment - has never before closely linked the physical content of the problem, its mathematical formulation, numerical calculation methods and modern computers. In order to solve the nonlinear problem of geomechanics, numerical MBE was used, substantiation by theoretical calculations was performed and numerical calculation data were illustrated.