无底柱分段崩落法采矿爆破悬顶问题的探讨

Discussion on Suspended—Top Blasting Question by Sublevel Caving Method Without Lower Pillar

本文叙述了武钢尖林山地下矿无底柱分段崩落采矿法采矿中常易出现的爆破悬顶问题,产生的原因,如何处理和预防措施。

This paper presented a question of the suspened—top blasting produced often by the sublevel caving method without lower pillar in Jianlinshan underground iron mine, the treatment methods and precautionary measures