无底柱分段崩落法在矿柱回收中的应用

针对融冠矿业多金属矿西采区1 158 m中段滞留大量的矿柱以及与后期改变采矿方法的过渡问题,对矿区地质特征、回收方案、爆破参数、爆破方案和施工方案进行了仔细的分析并详细地制定了合理的方案,为矿柱的回收和1 158中段以下使用无底柱分段崩落法采矿创造了有利的条件。

Application of Non-pillar Sublevel Caving Method in Pillar Recovery

In view of the fact that a great number of pillars were remained at 1158m sub-level in the west mine section of Rongguan Mining's multi-metal mine and also of the transition due to the mining method change in the late period, based on a careful analysis of the geological features, recovery plan, blasting parameters, blasting plan and construction plan, a rational plan was worked out for the pillar recovery, thus creating favorable conditions for the mining below 1158 sublevel by non-pillar sublevel caving.