小抵抗线大孔底距爆破技术在铜坑矿的应用  

APPLICATION OF BLAST TECHNIQUE WITH SMALL BURDEN AND LARGE HOLE BOTTOM SPACE IN TONGKENG MINE

作　　者：莫荣世[1] 

机构地区：[1]华锡集团铜坑矿,广西南丹县547207

出　　处：《矿业研究与开发》1997年第4期58-60,共3页Mining Research and Development

摘　　要：在银坑91＃矿体I＋1采场试验应用了小抵抗线大孔底距爆破技术，试验证明崩下的矿石大块率大幅度下降，提高了出矿生产能力，减少了二次破碎工作量，降低了采矿成本，取得了良好的技术经济效果，为今后开采该矿92＃矿体提供了经验。A blasting technique with small burden and large hole-bottom spacing had been used experimentally in 1+1 stope of 91# orebody in Tongkeng Mine. It was proved by experi-ments that large-sized fragment rate of caved ore was significantly reduced,ore drawing capacity improved, mining cost lowered and good technic economic effects obtained with this blasting technique. Thus the experiment provides experience for the mining of 91# orebody in the mine

关 键 词：铜矿 采矿 孔底距 抵抗线 爆破 

分 类 号：TD862.1[矿业工程—金属矿开采]