Application of unloading slot to assess the stress state in the massif around wells

IF 0.4 4区物理与天体物理 Q4 PHYSICS, MULTIDISCIPLINARY

Russian Physics Journal Pub Date : 2024-11-19 DOI:10.1007/s11182-024-03306-x

A. I. Chanyshev, I. M. Abdulin, L. V. Gorodilov

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Abstract

The problem of determining the displacements of the contour of a mine working with an arbitrary cross-section, after their completion on the site by the moment of its creation, is considered. To solve the problem, the method of slotted unloading is used. A contour similar to that of the investigated working with a subsequent unloading is drawn on the exposed surface of the rock massif. The displacements are measured both at the resulting core boundary and at the contour of the created hole, imitating the mine working contour. It is shown that these displacements differ not only in direction but also in magnitude. In order to determine the total displacements at the mine working boundary, it is necessary to sum them up. Then they are used both to estimate the stress-strain state of the rock massif around the mine working and the external loads applied to the rock massif as a whole. A solution in the elastic case for a circular cylindrical mine working is proposed, with the displacements of the arbitrary type defined on its contour.

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来源期刊

Russian Physics Journal PHYSICS, MULTIDISCIPLINARY-

CiteScore

1.00

自引率

50.00%

发文量

208

审稿时长

3-6 weeks

期刊介绍： Russian Physics Journal covers the broad spectrum of specialized research in applied physics, with emphasis on work with practical applications in solid-state physics, optics, and magnetism. Particularly interesting results are reported in connection with: electroluminescence and crystal phospors; semiconductors; phase transformations in solids; superconductivity; properties of thin films; and magnetomechanical phenomena.