Research and prediction of the stress-strain state of construction facilities in the undermined territories

Abstract

Deformations of the Earth’s surface in the territories of potash deposits last for decades. The processes of deformation of the Earth’s surface are caused by the displacement of layers of soil mass lying under the surface. Shifts in the layers of the soil massif are caused by the organization of mine workings. All this determines the regularity of the evolution of the stress-strain state of structures located in the mine construction zone. All this makes the task of studying the patterns of such behavior urgent. The influence of deformation of the soil mass on the load-bearing elements of various structures is studied. The level of deformations in the soil layer, which corresponds to the critical condition of the structure, has been determined. The data are presented on the basis of numerical solutions of boundary value problems on the interaction of the structure with the soil mass. The simulation was carried out using the ANSYS software package. The simulation results contain information about the distribution of the parameters of the stress-strain state of the structure depending on the deformation of the undermined zone. The limiting parameters of the deformation state of both the foundation array and the structure itself are determined.