抛掷爆破与剥离台阶开采参数分析——露天矿倒堆剥离开采方法系列论文之四

Casting Blast and Analysis of Mining Parameters of Stripping Bench——Technical paper series for open cast method in surface mines(Ⅳ)

对露天矿抛掷爆破技术的发展、预裂爆破及倾斜钻孔的应用、炸药类型、抛掷爆破参数及预期抛掷爆破效果进行了扼要阐述。露天矿倒堆剥离台阶各开采参数与抛掷爆破参数及其效果有密切关系 ,对剥离段高、采宽及剥离工作线长度的影响因素及其合理确定也进行了系统分析 .最后 。

The development of casting blast technique in open cast mines, the applications of pre-splitting blast and inclined drilling technique, the types of explosive, the parameters of casting blast and its predicted casting results were introduced. The mining parameters of a stripping bench such as its height, cut width and working line length, closely related to the parameters and results of casting blast, as well as their influencing factors and rational determination were analyzed. In addition, coal production reserves in open cast mines as a special problem were discussed.