大暴露面积采场控制爆破技术的探讨与应用  

Investigation and Application of Controlled Blast Technology in Mining Pit with Large Exposed Area

作　　者：樊明玉 

机构地区：[1]招金矿业股份有限公司大尹格庄金矿

出　　处：《金属矿山》2007年第3期30-34,共5页Metal Mine

摘　　要：根据盘区机械化高效采矿方法采场的结构特点,对多段微差爆破和光面爆破工艺参数做了类比研究,采用优化后的控制爆破参数,减少了爆破对采场顶板和矿柱边界的破坏,大块产出率降至2%以下,降低了回采爆破作业的成本,改善了回采作业的技术经济指标。According to the features of high efficiency mechanical pan mining method, analogies test was conducted on the process parameters of multi-section microsecond blast and smooth blast. The application of the optimized controlled blast parameters decreased the destruction of the stope roof and boundary pillar by the blast and reduced the large fragmentation rate to under 2%, thus reducing the cost of blasting for extraction and improving its technical and economical indexes.

关 键 词：控制爆破 正交试验 大块产出率 

分 类 号：TD326[矿业工程—矿井建设]