中深孔微差爆破参数优化在某露天矿开采中的应用

OPTIMIZATION OF MEDIUM DEPTH HOLES MILLISECOND BLASTING PARAMETERS IN AN OPEN-WORK

针对某露天矿井开采中大块率高、留有根底等严重影响生产的问题 ,对原用深孔微差爆破方案、爆破参数和起爆网路等进行了调整和优化。爆破效果表明 ,所确定的爆破方案及设计参数是有效的 。

In accordance with the disadvantages of high blasting boulder yield and many roots,which restrain the production greatly,the original deep hole blasting scheme,blasting paramaters,priming network and others are adjusted and optimized in this paper.The blasting results show that the optimized blasting scheme and blasting parameters are effective.The valuabe reference are provided for similar engineering of medium depth holes millisecond blasting.