分段矿房法切槽爆破技术改进与实践

Improvement and practice of slot blasting technique in sublevel chamber stoping

在分段凿岩阶段出矿的分段矿房法回采实践中,采用扩井、切槽爆破一次同步进行,提高了爆破施工的生产效率,同时减小了炮烟对整个矿山生产的影响。

In the practice of sublevel chamber stoping with sublevel drilling and phase drawing, the shaft expanding blasting and slot cutting blasting were carried out simultaneously, which improved the blasting efficiency and reduced the influence of explosive smoke on the mine production.