Analysis and justification of research into soil deformation processes

Abstract

The study of soil deformation processes is substantiated. The analysis of studies aimed at studying the processes occurring in the soil indicates that in most cases the consideration of these processes was carried out on the basis of the relevant strength theories, and the most common soil models were represented as a solid body, a continuous elastic medium, a continuous incompressible bulk medium, a continuous medium capable of deformation and a continuous elastic-plastic medium. The adhesion forces between individual elements of different mechanical composition also differ in magnitude, which indicates that the soil in the initial state is a continuous medium capable of deformation, which consists of individual elements in the middle of which, between individual soil particles, adhesion forces are greater than in the boundary zones between neighboring elements. Assuming such a hypothesis of the state of the soil as an object of mechanical cultivation, the contact of the working body with the soil can be considered as a stochastic process of successive collisions of the surface of the working body with a continuous medium capable of deformation, represented by separate aggregates, which are characterized by parameters (density, linear and volumetric dimensions), the change of which is subject to a certain distribution law. Knowledge of these laws will allow more accurately modeling the process of soil crumbling mathematically. The results obtained were implemented in the educational process of the Higher Education Institution «Podillia State University» and included in the educational and methodological complex of the discipline "Mechanical and technological properties of agricultural materials". Further development of research into soil deformation processes was obtained, which is important for substantiation and improvement of the working bodies of soil tillage machines.