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本文对大孔采矿法几个重要的技术问题提出了一点新的看法,认为利文斯顿爆破漏斗理论作为VCR采矿法爆破理论基础,还有必要进行研究加以更深入的改进与完善;采矿工程中球状药包长径比不必限制在6以下,大孔采矿炮孔直径可以变化,最优孔径有待重新研究。作者主张在侧向崩矿中应用球状药包,推广大孔爆破的联合采矿法。最后,还对大孔采矿技术经济指标的计算提出了看法。
This article put forward some new ideas on several important technical issues of macroporous mining method. It is believed that Livingston’s theory of blasting funnel as the basis of VCR mining blasting theory, and the need for further research to improve and perfect; mining engineering Spherical drug packet aspect ratio does not have to be limited to 6 or less, large hole blast hole diameter can change, the optimal aperture to be re-studied. The author advocates the application of spherical drug packs in lateral collapse, promoting the joint mining method of large-hole blasting. Finally, we also put forward the opinion on the calculation of the technical and economic indicators of macroporous mining technology.