FIELD: mining industry.
SUBSTANCE: method includes determining width of edge zones of block, subjected to influence from support pressure, then preparatory mines are driven along block at limits of these zones and permanent rigid supports are erected therein. After that portion of block from preparatory mines to block center is extracted.
EFFECT: increased mineral resource yield coefficient, safer extraction of inter-panel support blocks, without breaking their carrying ability and without using backfill materials.
2 dwg
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