摘要
本文介绍了在西石门铁矿无底柱分段崩落法中试验和应用扇形炮孔“孔底爆破”法和孔底起爆“安全装置”,经过两年多的工业试验,取得了较好的技术经济效果,并已在金矿推广应用。
The paper describes the test and application of "priming at the bottoms of fan-pattern blastholes" method and a device for safely priming at the bottoms of blastholes. After two years' industrial test, the method and devices have been populized in the mine and better techo-economical results have been achieved.
出处
《中国矿业》
1992年第2X期38-42,共5页
China Mining Magazine
关键词
采矿工程
孔底起爆
分段崩法
Fan-pattern holes
Priming at the collars of holes
Priming at the bottoms of holes
Safety device.
