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本文通过开展爆破质量的实验研究与理论探讨,得出如下结论:1·加大炮孔密集系数、改变装药结构,能提高炸药能量利用率;2.利用分段崩落法采矿,在中厚构造不发育的矿体内,采用m=2～2.5比用m=1.1～1.2的爆破效果要好得多;3.在孔底装粒状炸药,孔口装柱状硝铵炸药,可以改善爆破能的分布,降低一次炸药单耗;4.小补偿空间挤压爆破,拉槽部分是大块的高产区,因此槽边开崩排面必须采用小密集系数爆破。
In this paper, the blasting quality of the experimental research and theoretical discussion, draw the following conclusions: 1 increase the hole density coefficient, change the charge structure, can improve the explosive energy utilization; 2. In the undeveloped ore body, the blasting effect with m = 2 ~ 2.5 is much better than that with m = 1.1 ~ 1.2; 3. The distribution of blasting energy can be improved by using granular ammonium nitrate explosives in the bottom of the hole, Reduce the explosive unit consumption; 4 small compensation space extrusion blasting, pull the groove part is a large area of high-yielding area, so the slot side of the open collapse surface must use a small dense coefficient of blasting.