METHOD FOR IN-LINE PRODUCTION OF WORK AT NON-BENCHING VERSION OF EXTRACTION OF CHAMBERS ALONG STRIKE ON CHAMBER-AND-PILLAR SYSTEM Russian patent published in 2013 - IPC E21C41/22 

FIELD: mining.

SUBSTANCE: method involves extraction of ore reserves to the height of up to 8 m by means of a non-benching working face in vertical plane using self-propelled equipment, removal of mined rock and its transportation, supporting of the roof by leaving safety chain pillars 2.5 m wide, reinforcement of the roof with anchors. Extraction work of ore reserves is performed simultaneously in three working faces; at that, one of the main operations of the bottom-hole cycle is performed in each working face every month: drilling of wells and breaking of ore, removal of mined rock, reinforcement of the roof and walls of shrink stoping. Mined rock is transported from bottom-hole space to ascending ore space is performed by means of a loading and hauling machine, and from ascending ore space to ore chute with a drag-type conveyor. When reinforcing the roof and walls of shrink stoping to anchors there attached is polymer or wire mesh.

EFFECT: improving development efficiency of a minefield due to stream-lining of operation of the bottom-hole cycle and reliable reinforcement of the roof.

3 cl, 4 dwg