破碎复杂难采矿体分级控制爆破技术研究  

Research on classified controlled blasting technology for soft broken-complex orebody

作　　者：佘文远 SHE Wen-yuan(Zijin Mining Group Co.,Ltd. ,Longyan 364200,China)

机构地区：[1]紫金矿业集团股份有限公司

出　　处：《世界有色金属》2019年第9期153-159,共7页World Nonferrous Metals

摘　　要：针对左岸金矿破碎复杂难采矿体开采过程中爆破扰动诱发充填体和进路周边矿岩破坏严重、循环进尺少、损失贫化大、安全风险高等问题,通过采用矿岩分级控制爆破技术进行爆破参数优化,保证了进路采场矿岩及充填体在作业中的稳定性和完整性,提高了采矿作业的本质安全化程度,大幅提高了采矿生产能力和生产效率,取得了良好的经济效益和社会效益,对类似矿山具有一定的借鉴意义。In view of the problems caused by blasting disturbances in the mining process of the soft broken-complex orebody in Zuoan Gold Mine,the damage of the backfilling body and the surrounding rock is serious,the cyclical footage is small,the ore loss and dilution are large,and the safety risk is high.The blasting parameters are optimized by using classified controlled blasting technology of ore and rock,which ensures the stability and integrity of the ore and rock as well backfilling in the operation,improves the essential safety of mining operations,greatly improves the mining production capacity and production efficiency,and achieves good economic benefits and social benefits,has certain reference significance for similar mines.

关 键 词：破碎复杂难采矿体 上向进路充填采矿法 爆破参数优化 楔形掏槽 光面爆破 充填体 矿岩可爆性 可爆性分级 

分 类 号：TD85[矿业工程—金属矿开采]