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提高露天矿台阶高度,是关系我国露天金属矿山,特别是大型露天矿生产和技术发展的一个十分重要的问题。本文从合理利用炸药能量出发,论述高台阶爆破时填塞高度与装药高度比随台阶高度变化的关系。分析高台阶开采条件下,孔距与抵抗线比对爆破效果影响的规律。阐述高台阶爆破的合理装药结构,以及扩孔爆破问题。
Increasing the height of the open pit mine is a very important issue that relates to the production and technical development of the open pit metal mines, especially the large open pit mines in our country. In this paper, starting from the rational use of explosive energy, the relationship between the height of packing and the height of charging height with the height of step is discussed. The influence of hole distance and line resistance ratio on the blasting effect under high-level mining conditions was analyzed. Describe the rational charging structure of high-level blasting and the problem of reaming blasting.