安庆铜矿大孔采矿采场底部结构的改进

MODIFICATION OF STOPE BOTTOM STRUCTURE IN LARGE-DIAMETER LONGHOLE MINING IN ANQING COPPER MINE

安庆铜矿大直径深孔采矿法采场用铲运机出矿,原采场底部结构设计为单侧出矿进路,使铲运机通行不便,出矿效率低,因而将其改进为双过路结构,可在采场两侧出矿,大大提高了出矿效率.

LHDs were used for ore removal from stope in large-diameter longhole min-ing in Anqing copper mine. Originally, the bottom structure of stope was designed as sin-gle-side ore removal drift which made the LHD travel unconvenient and ore-removal effi-ciency low. Therefore, the single-side ore removal drift has been changed into dual-drift slructure. In this way, the ore removal from stope can be conducted on the two sides, with a greater efficiency of ore removal.