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GEOMECHANICAL ANALYSIS OF THE STABILITY OF SALT STOPES IN THE LAYERED SALT MASS

A. A. Baryakh

First published: 2018-06-20https://doi.org/10.5593/sgem2018/1.3/s03.056View metrics

Abstract

This article presents an analysis of the stability of stopes that is based on the mathematical modelling of stress-strain states and the criterial assessment of destruction of the heterogeneous layered rock mass encompassing a system of mine openings. The problem solution has been carried out in the plane strain state setting. The state of an undermined stratum has been described by an ideal elastic-plastic medium. The technological interbed and the roof of an upper bed have been modeled by a layered medium including clay bands. The deformation of clay bands between the layers has been described by the Goodman joint elements. The two principal technological mining schemes have been considered. The assessment of safe conduct of mining operations for all the variants of stopes has been based on a quantitative analysis of the stratification intensity of the roof?s rocks and the interbed. Based on these calculations and accepted destruction criteria, a potential possibility of the stopes? roof and the technological interbed collapse have been determined. The article also presents the modelling results illustrating the nature of development of deformational processes and the localization of destructions in the stopes' roof and the technological interbed for technological superimposed bed mining schemes.

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Publication details

Title
GEOMECHANICAL ANALYSIS OF THE STABILITY OF SALT STOPES IN THE LAYERED SALT MASS
Authors
A. A. Baryakh
Proceedings
SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 18th International Multidisciplinary Scientific GeoConference SGEM2018, Science and Technologies in Geology, Exploration and Mining
Publisher
STEF92 Technology
Year
2018
Pages
435-442
SWS Citekey
Baryakh20183435442
ISSN
1314-2704
ISBN
978-619-7408-37-9
Language
en
Publication type
Conference Paper
Proceedings contents
Open official contents
Keywords
mathematical modellingstress-strain stateroom-and-pillarpotash miningclay joints.
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