Authors: V.A. Gogolin, V.V. Sementsov, I.A. Ermakova

Title of the article: Numerical assessment of soil heaving in development workings outside zone of mining operations influence

Year: 2026, Issue: 4, Pages: 135-143

Branch of knowledge: 2.8.6. Geomechanics, destruction of rocks by explosion, mine aerogasdynamics and mining thermophysics

Index UDK: 622.823

DOI: 10.26730/1999-4125-2026-4-135-143

Abstract: This paper examines the soil heaving mechanism in development workings within a model of linear deformation of host rocks and coal seams. A problem statement and a computational model are proposed for determining the stress-strain state (SSS) of a rock mass, including roof rock, soil, immediate soil, and a coal seam. Soil swelling was not considered. The influence of mining operations on soil heaving in the development workings was ignored. The computational domain was the cross-section of the development workings, which embodies the plane-strain state of the rock mass. The SSS of the rock mass was calculated using the finite element method using the licensed ELCUT program. The influence of the deformation characteristics of the immediate soil on the magnitude of soil heaving was determined. The magnitude of soil heaving is primarily influenced by the modulus of linear deformation of the immediate soil. The highest value of the modulus of linear deformation of the seam soil was found, determining the critical value of soil heaving for maintaining the working's operability. The dependence of soil heave magnitude on the working depth and the immediate soil thickness was determined. It was found that as the immediate soil thickness increases, the heave magnitude increases to a certain value. As the immediate soil thickness changes, its contour varies, from convex to concave. The results of this study can be used to evaluate the effectiveness of methods for preventing soil heave in coal seam workings, such as anchoring, concreting, installing relief trenches, and others, under various mining, geological, and engineering conditions.

Key words: soil heaving finite element method stress-strain state development workings

Receiving date: 02.05.2026

Approval date: 01.09.2026

Publication date: 10.09.2026

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