无底柱分段崩落法无贫化放矿理论研究与探索  

Theory Research and Exploration of Non-dilution Ore Drawing by Using Sublevel Caving Method

作　　者：杨宫印[1] 陈玉明[2] 

机构地区：[1]陕西铁路工程职业技术学院,陕西渭南714000 [2]昆明理工大学,云南昆明650000

出　　处：《有色矿冶》2015年第5期15-17,21,共4页Non-Ferrous Mining and Metallurgy

摘　　要：自20世纪60年代无底柱分段崩落采矿法引进以来,已得到广泛应用。与其它采矿方法相比,该法具有机械化程度高、安全性好及采矿成本低等特点。但是,受松散覆岩下放矿条件的影响,其矿石损失贫化率较高,在开采过程中造成了大量矿产资源的浪费。本文通过对崩落矿岩的流动特性及移动规律的研究,进一步探索了无贫化放矿机理,为该法能在实际中更好的应用,提供了一定的理论基础。The bottomless pillar sublevel caving method has been widely used in metal mines since it was introduced in the 1960 . Compared with other mining methods, this method unique to the high degree of mechanization , safety, and low cost of mining. However, it affected by the loose overburden rock under mining conditions, the ore loss and dilution rate is high, resulting in a large waste of mineral resources in the mining process, we can provides certain reference value for the actual production using the method base on the non dilution ore drawing theory , which study on the flow characteristics and the movement law of caved ore and rock.

关 键 词：无底柱分段崩落法 松散覆岩 损失贫化率 资源浪费 

分 类 号：TD853.36[矿业工程—金属矿开采]