Technological Factors Influence of Inter-block Pillars Stability on the Magnesite Deposits
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Pavol Vavrek
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| Transactions of the VSB - Technical University of Ostrava, Civil Engineering Series |
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2009, Volume 9, Issue 2, Pages 271-278
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Doi: Not indexed
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The paper focus on the geomechanical analysis of underground mining by extraction of the deposit of magnesite minerals in Slovakia. Magnesite deposits in Slovakia belong to the largest ones in Europe. Deposits of the major economic importance occur in a long strep in the central and eastern part of the Slovenske Rudohorie Mst. Large deposits Jelsava-Dubravsky masiv, Kosice-Bankov, Lubenik and other smaller deposits are situated there. The main extraction technique up the eighties of the last century was the method of open stope with mining railles mechanization. For selective mining since the nineties was used new method of extraction: mechanized overhead stopping method, with the inter-block pillars of 5x5 m. The paper is oriented on the solution geotechnical problems-backfill influence related with inter–block pillar stability.
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