留矿法采矿控制爆破实践

[SD12,1]Blasting control in shrinkage stoping method

在采场落矿中综合应用了周边控制爆破、大孔距和微差爆破技术,提高了浅孔留矿法采场顶板的安全性并减少了大块。

In the practice of using shrinkage stoping method, the controlled perimeter blasting, wide-spacing blasting and short delay blasting are adopted to ensure upper plate safety and reduce lump ore percentage.