Experimental Investigation of Underground Mining of High-Grade Quarts in Kyshtym Mine

Application of a geotechnology used in high-grade quarts mining in Kyshtym Mine is studied. The room-and-pillar method is trialed, and the actual mining performance is assessed. The potential benefits of the geotechnology are evaluated. The air-decoupled charges without inert filler are designed and...

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Bibliographic Details
Published in:Journal of mining science 2018, Vol.54 (1), p.85-93
Main Authors: Sokolov, I. V., Smirnov, A. A., Antipin, Yu. G., Baranovsky, K. V., Nikitin, I. V., Rozhkov, A. A.
Format: Article
Language:English
Subjects:
Blasting
Earth and Environmental Science
Earth Sciences
Feasibility studies
Geophysics/Geodesy
Geotechnical Engineering & Applied Earth Sciences
Geotechnology
Mineral Mining Technology
Mineral Resources
Mining
Parameter estimation
Powder
Quartz
Size distribution
Underground mines
Underground mining
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Summary:Application of a geotechnology used in high-grade quarts mining in Kyshtym Mine is studied. The room-and-pillar method is trialed, and the actual mining performance is assessed. The potential benefits of the geotechnology are evaluated. The air-decoupled charges without inert filler are designed and tested for fan pattern blasting. Size distribution of broken ore is estimated, and optimal parameters of blasting and powder factor are determined. The feasibility of quartz loss reduction by 3 times owing to extraction of useful mineral from pillars and due to decreased yield of overground quartz by 25–40% is proved.
ISSN:1062-7391
1573-8736
DOI:10.1134/S1062739118013389