摘要
华锡集团铜坑矿采用分阶段"深孔强制崩落隔火矿柱、采空区和大量放矿"方案治理细脉带特大事故隐患区。根据放矿试验研究,建立放矿数字模型,确定采用大块覆盖、高阶段斜面放矿方法回收细脉带特大事故隐患区第一爆区崩落矿石,采区矿石回收率达65.9%。
The solution of deep-hole caving safety pillar and stopes,and large drawing ore to eliminate potential causes of accidents in the veinlet fire zone of Tongkeng mine is applied.The drawing model is established based on a pilot study.And the caving ore is drawing under a layer of large rock which isolates the ore from upper fire ash.The ore recovery rate is up to 65.9 %.
出处
《矿冶》
CAS
2009年第3期9-11,20,共4页
Mining And Metallurgy
关键词
高阶段
放矿
回收率
high-stage
drawing ore
recovery rate
