FIELD: mining industry.
SUBSTANCE: invention relates to the mining industry and can be used in the mining of ore bodies that are not steep enough for the free flow of ore by chambers with a continuous recess and subsequent backfilling with a hardening material. Method includes driving a drilling drift, loading and hauling ores, ore passes, backfilling and ventilation risers, drifts and orts, drilling backfill holes, forming a cutting gap by breaking holes on a cutting riser, layer-by-layer breaking of well fans with partial ore release, continuous storage of ore in the chamber to maintain unstable rocks of the hanging wall, general release of compacted ore with the formation of a slope of unexpired enriched ore on the lying side and backfilling of the chamber with hardening material. To extract the beneficiated ore slope, a perforated pipe is laid in the drilling drift of the upstream chamber before well breaking and connected to the mine networks of water and compressed air, and wells are drilled in the lying side directly under the slope and concussive charges are laid in them. After the completion of the general release, water is supplied through a perforated pipe, which saturates the ore at the base of the slope, losing the angle of internal friction, after which a shocking explosion is produced. Under its action, the slope collapses into the flow zone and is removed.
EFFECT: exclusion of ore losses on the lying side of the ore body.
1 cl, 2 dwg
