无底柱分段崩落法在狭长缓化矿体开采工艺中的研究应用

Research and application of mining technology for long and narrow ore body with sublevel caving without sill pillar

无底柱分段崩落采矿法是现代采矿行业中常用的一种采矿方式,但这一方法主要是在覆岩之下出矿,很容易出现矿石损失贫化这类问题,故而明确无底柱分段崩落法的使用要点。本文简要概述了无底柱分段崩落法在狭长缓化矿体回采过程中难以经济回收的问题,分析了无底柱分段崩落法的使用要点,给出了狭长缓化矿体的有效回采策略,以求为推动矿山开采工作的顺利开展提供理论上的支持。

Pillarless sublevel caving mining method is a common mining method in modern mining industry,but this method is mainly under the overburden,which is easy to cause ore loss and dilution.Therefore,the key points of pillarless sublevel caving method are clarified.This paper briefly summarizes the problem that sublevel caving without sill pillar is difficult to recover economically in the process of mining long and narrow ore body,analyzes the key points of sublevel caving without sill pillar,and gives the effective mining strategy of long and narrow ore body,so as to provide theoretical support for the smooth development of mining work.