Model building for the numerical study of the stress-strain state of geomassive when moving a face

Abstract

Model building for the numerical study of the stress-strain state of geomassive when moving a face

Pavlova L.D., Kornev E.S., Korneva A.V.

Incoming article date: 09.11.2019

For a numerical study of the stress-strain state of the edge sections of a coal vein under the influence of a mining zone, there is a mathematical model of the geomass deformation processes, which is reproduced in the form of boundary value problems of the theory of elasticity. The problem was solved by the finite element method in a variational formulation, in which the functional was minimized with full potential energy to determine displacements in narrow of elements. Computational experiments were carried out using the author's complex of programs. Based on the results of numerical modeling, recommendations for strengthening the coal target and definitely bearing capacity was developed. The use of the developed mathematical model and software package allows us to design documents at the development stage, to predict the stress-strain state of the geomass in the zone of influence of the underground mining system.

Keywords: Mathematical model, numerical modeling, computational experiment, software package