摘要
在扇形中深孔采矿中 ,采用单孔爆破漏斗试验 ,变孔距多孔同段爆破试验与斜面台阶爆破试验相结合 ,确定凿岩爆破参数。实践表明 ,大块率低 ,爆破效果好 ,出矿能力大 ,经济效益明显 ,试验确定的凿岩爆破参数准确。
In fan shaped medium length hole mining,drilling and blasting parameter was determined by such tests as single crater blasting,multiple hole simultaneous initiation with changing hole distance and inclined bench blasting.It was practically demonstrated that boulder frequency was reduced and blasting effect was improved,and further,scraper capacity was increased and economical benefit was elevated.In a conclusion,the drilling and blasting parameter decided by industrial test was accurate and practical.
出处
《中国钼业》
2002年第1期11-14,共4页
China Molybdenum Industry
关键词
扇形中深孔
爆破漏头
凿岩爆破参数
工业应用
Fan shaped medium length hole,Blasting hopper,Drilling and blasting parameter,Industrial application
