CORRESPONDENCE OF NUMERICAL MODELS OF LANDSLIDE-PRONE SLOPE TO PHYSICAL OBJECTS OF RESEARCH

Purpose. The purpose of this work is to substantiate the adequacy of numerical models to real physical objects, which significantly depends on how precisely the physical and mechanical characteristics of the soil massif are determined. This especially applies to the determination of critical geometric parameters of slopes. Methodology. Generalization of well-known research in geomechanics and geotechnics, which used an approach to determine the main mechanical characteristics of the soil massif based on the analysis of the deformed state, including critical, real objects, and subsequent back-calculations. Findings. According to the methodology in accordance with the specified approach, all objects under investigation, regardless of their final purpose, are classified according to a justified classification feature. For each class, the following basic real objects are selected, on which irreversible changes in the deformation state have occurred. If the geological structure, hydrogeology of the rock massif, external influences, as well as the geometric parameters of such a destructive process, which is a landslide, are known, then through reverse calculations it is possible to find such averaged physical and mechanical characteristics, the use of which for the appropriate class of selected objects will allow to build and investigate an adequate geomechanical model. Originality. A methodical approach to the determination of physical and mechanical characteristics by their selection, using cases of manifestations of the stress-strain state of pre-classified real objects, is proposed. Practical value. Determining the critical conditions of natural slopes and artificial slopes based on the assessment of the physical and mechanical characteristics of the soil massif as a whole by means of reverse calculations will allow to safely design the construction of buildings and structures on the slopes and ensure the reliable operation of open pit mining operations.