METHOD FOR MINING ORE BODIES Russian patent published in 1997 - IPC

FIELD: mining industry. SUBSTANCE: method can be used in mining inclined ore bodies primarily of medium thickness. Filling mass is compiled in the form of guarding ore pillars which are created at contact between pillar and worked-out area of chamber and for this purpose drilled raises intended for cutting chamber reserves extend through underneath rock mass below floor of worked-out area. Ore is mined with retention of underneath rock above drilled raise, and formation of guarding pillars is effected by blasting underlying above drilled raise, delivering it by blasting method to side walls of chambers and plugging by delivery of binding compound through blast-holes intended for cutting reserves of ore pillar which were drilled up to crossing side walls of adjacent chambers. EFFECT: high efficiency. 2 cl, 3 dwg