FIELD: mining industry. SUBSTANCE: method includes construction of bulkhead, consolidation of rock mass by juds in direction of mining by drilling of longitudinal and inclined holes extending beyond the outline of working and injection into these holes of consolidating mortars; breakage of rocks and installation of permanent support. Injected into longitudinal holes is lean cement-ash mortar with cement-solid part of mortar equaling 0.1-0.2, and inclined holes are injected with rich cement mortar. EFFECT: reduced consumption of cement for consolidation of mine workings. 3 dwg
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