摘要
文章针对井下坚硬难爆岩石,采用孔内双起爆药包相向同段起爆方法,提高起爆药包的装药密度和猛度。并再采取其他辅助措施,减少了采场大块率,改善出矿条件,取得良好效果。
In view of the underground hard rock blasting, blasting method relative to one another with pairs of primer inside the hole is adopted to improve the charge density and brisance of primer.And other auxiliary measures are applied to decrease the stope large ore rate so that the mining condition can be improved, obtaining good results.
出处
《企业技术开发》
2014年第6期90-91,共2页
Technological Development of Enterprise
关键词
爆破
双起爆药包
相向同段起爆
采场大块率
blasting
pairs ot primer
blasting method relative to one another
the rate ot stope large ores
