FIELD: mining industry.
SUBSTANCE: method includes separating bed on levels by driving level drifts, driving sublevel drifts, separating levels on sublevels, extraction of mineral resource in sublevels by hydraulic monitors, transporting caved-in enveloping rocks to extracted space of lower sublevels. Extraction of bed is performed without leaving of any coal blocks between extracted spaces of adjacent levels. During extraction of lower sublevel, adjacent to upper boundary of even lower level, extracted space is filled within limits of current sublevel with empty rocks, while slanting height of backfill massif is taken to be greater than 0.6 horizontal bed massiveness. Slanting height of lower sublevel is taken to be greater than slanting height of backfill massif.
EFFECT: higher personnel safety, higher efficiency, lower costs.
1 dwg
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