FIELD: mining.
SUBSTANCE: proposed method comprises development of quarry field in steps, land filling of external and internal piles in mined out space of man-made deposit of off-grade ores. In formation of mined out space, uncovering drifts over bottom levels in boundaries and at height of planned man-made deposit are driven in ore, while at the level fixing the end of sinking jobs in the first stage outlines internal dump is cyclically piled to locate uncovering drifts therein. Said internal dump divides quarry space into zones of gotten and not gotten jobs. Simultaneously, man-made deposit is formed bordering upon quarry mined out space and internal dump. Now, proceeding with development of main deposit reserves, man-made deposit is prepared.
EFFECT: higher efficiency.
3 dwg
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