梯段硐室组合爆破设计与效果分析

Design and Effect Analysis of Combine Blasting on Step Hole and Chamber

本文介绍的梯段硐室组合爆破，对改善爆破效果，满足堆石坝对石料开采的级配要求，作了有益的实践尝试。

In this paper the combine blast on step hole and chamber is described.The method improves blasting effect.lt is a beneficial practice to satisfy the grade of rockfill dam stone expoited.