摘要
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。
Raising bench height is an important problem concerning the development of production and technique in the open-pit metal mines in the country. Proceeding from reasonable utilization of explosive energy, the paper discusses the relation between the ratio of stemming height/bench height, and loading height. The influence of the ratio of hole spacing/burden on blasting resulting in the condition of high bench is analysed. The reasonable loading structure and rea ming blasting are expounded.
出处
《中国矿业》
1992年第2X期18-23,共6页
China Mining Magazine
关键词
露天矿
台阶
爆破
炸药
装药
High bench blasting
Utilization factor of explosive energy
Loading structure
Reaming blasting.
