四川国大水泥矿山运用空气间隔期的爆破原理经过近一年的探索、研究、完善和不断的改进,独自研发了一种适用于露天采矿中深孔爆破应用自制式空气间隔器的爆破装药方法,取得了成功,通过在国大项目部推广使用,取得了很好的爆破效果和良好的经济效益。一、空气间隔期爆破原理空气间隔装药爆破时,在炮孔药柱中部保有空气间隔时,两个相对的冲击波阵面在此空气间隔中部相互碰撞,接着爆炸产物对岩石进 Blasting principle of Sichuan Guoda cement mine using air-gap period After nearly a year of exploration, research, perfection and continuous improvement, a new type of blasting charge applied to the self-made air spacers used in deep-hole blasting in open pit mining has been developed Methods, and achieved success. Through the promotion and use of the project department of NUS, it achieved good blasting effect and good economic benefits. First, the air interval blasting principle Air space charge blasting, the middle of the hole to retain the air when the grain interval, the two relative shock wave front collision in the middle of the air gap between each other, and then the explosion of rock into the product