FIELD: mining industry.
SUBSTANCE: method includes placement of dry filling material in excavated space of chamber, prior to feeding of dry filling materials tanks with fast-hardening extending liquid - polyurethane are placed there, and polymer-ore protective layer in chamber bottom is formed by means of exploding tanks with said liquid in cut ore massive by explosive charges, after which dry filling material is fed into excavated space.
EFFECT: safer operations, better quality of isolation of excavated space and absence of possibility of penetration of filling material into mines.
2 dwg
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|---|---|---|---|
| DEVICE FOR PROTECTING SPACES THAT ARE OBJECTS OF NATURAL AND MAN-MADE FORMATIONS AND THE METHOD OF ERECTING IT | 2017 |
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RU2660949C1 |
| METHOD FOR EXPLOITATION OF STEEPLY DIPPING ORE BODIES AND METHODS FOR MINING, PROCESSING AND BENEFICIATION OF COPPER AND/OR COPPER/ZINC, AND/OR ZINC, AND/OR SULFUR ORES POSSIBLY CONTAINING GOLD, SILVER AND OTHER PRECIOUS AND RARE-EARTH ELEMENTS OF STEEPLY DIPPING ORE BODIES | 1995 |
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| METHOD FOR UNDERGROUND THICK ORE BODY MINING | 2005 |
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| METHOD OF EXCAVATING SLOPING MINERAL DEPOSITS | 0 |
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RU2352780C1 |
