METHOD OF MINING ORE BODIES Russian patent published in 2023 - IPC E21C41/22 E21F15/00 

FIELD: mining industry.

SUBSTANCE: invention can be used in the mining of inclined ore bodies with overlying rocks that are not sufficiently stable for excavation by open chambers. The method of continuous mining of inclined ore bodies, which consists in combining breaking with the delivery of ore by explosion and breaking with ore storage followed by backfilling with hardening material, includes mining an inclined drilling working, an ore-inlet drift, loading and hauling ores, an ore pass, backfilling workings, ventilation and running crosscuts, drilling of filling wells, formation of a cutting slot, drilling of well fans, excavation of chambers with backfilling through wells. The stope is divided diagonally into two parts with the formation of a separating edge at an inclination equal to the angle of collapse of the stored ore, which eliminates preconditions for ore losses in the dead zone. The lower semi-chamber being worked out first of all is beaten off with the delivery of ore by explosion under the cover of a stable ore massif and it is released, excluding the last layer, the ore of which fills the workings of the bottom and serves as a jumper for localization of the backfill. This ore is released after the backfill has hardened. The upper semi-chamber is beaten off in layers "in the clamp" and the ore is stored. After an intensive general mucking, the stope is filled with a backfill, providing a pillarless mining with a high completeness of ore extraction in difficult mining and geological conditions.

EFFECT: preventing the loss of ore on the lying side by combining the breaking outline with the generatrix of the caving zone and the release of ore compacted in the store, as well as preventing the exposure of overlying rocks.

1 cl, 4 dwg