METHOD FOR MINING ORE BODIES Russian patent published in 2022 - IPC E21C41/22 

FIELD: mining industry.

SUBSTANCE: invention relates to the mining industry and can be used to mine deposits that are not steep enough for the free flow of ore. The method for mining ore bodies includes carrying out outlet and sublevel drilling workings, drilling inclined fans of wells, breaking ore in layers on the under-cantilever space, limited by an ore massif and a slope of the collapsed rock at an angle of collapse of the broken ore. The release of ore is carried out under the protection of the console. The console is brought down upon reaching the critical outcrop of the hanging side, leaving a protrusion in the console equal to the movement of the ore from loosening when breaking one layer in the clamp. The slope of the collapsed rock is silted up, breaking in the clamp of the first layer, the release of the layer ore and shotcrete of the slope surface as it is exposed. The breaking of the ore to the under-console space is carried out sequentially by sub-levels, starting from the upper sub-floor, with the delivery of the ore by explosion to the flow zone. The ore is tapped, after which the collapse of the ore slope remaining in the "dead" zone is caused by saturating it with water supplied through the sublevel drilling workings and wells in the console. The ore is extracted, and after that, a crest of an artificial bottom is formed in the "dead" zone by supplying a plastic hardening backfill from the drilling working of the second sublevel.

EFFECT: increasing the completeness of ore extraction in the conditions of mining deposits with an insufficiently steep drop.

1 cl, 5 dwg