摘要
在安底金矿倾斜薄矿脉内试验成功一种新的采矿方法──分采留矿全面法。先用抛掷爆破的方法把矿石崩到留矿空间，用废运输胶带在留矿堆上建立起临时隔离层．再用松动爆破技术崩下废石，把废石运出采场丢弃，实现矿岩的分采，取得了良好的经济效益。
A new mining method, the resue shrinkage-full mining method, has been put forward and hasbeen tested successfully at Andi Gold Mine. It can be used in the thin (0. 7~1. 2m) and inclined(25°~55°) ore veins. Firstly, some ore is extracted and is transferred to the shrink by pin-point blast-ing. Secondly l a temporal isolating mat is set up with some waste rubber conveyor belts. Thirdly, theremaining rock is broken into pieces by standing shot and is hauled out by slushing. Therefore, ore androck are mined separately. It can reduce the ore dilution ratio from 30%~60% to less 15 %, so it canobtain good profits.
出处
《中国矿业》
1996年第1期21-25,共5页
China Mining Magazine
关键词
地下开采
金矿
留矿全面法
分采留矿
采矿
Underground mining, Gold ore mining, Resue shrinkage-full mining method, Cutand-fill method
