摘要
拉么锌矿经过40余年的开采,矿产资源已枯竭。这几年的地质调查和局部补勘,查明还有一些零星小矿体和分布在原老采场的边角矿体的矿石总量约为52.56万t,对零星的缓倾斜小矿体采用浅孔房柱法回采。开采实践证明,采用此法回采缓倾斜细脉残矿体,取得了良好的经济效益。
After more than 40 years of mining,the mineral resource in Lamo Zinc Mine is becoming exhausted.According to the geological survey and partial prospecting in recent years,it is found that there are still some small ore bodies and the total amount of the ore distributed in the corner of the old mining area is about 525,600 ton.Short-hole room-pillar method should be used to the recovery of the slightly dipped small ore body.Mining practice has shown that significant economic benefit has been made by using this method to extract the slightly dipped fine vein.
出处
《四川有色金属》
2010年第2期15-18,共4页
Sichuan Nonferrous Metals
关键词
拉么锌矿
残矿回采
浅孔房柱法
Lamo Zinc mine
Residential Ore Recovery
Short-hole room-pillar method