侧向爆破抛掷出矿技术在分段空场法中的应用

Application of Lateral Pin-point Blasting Mining Technique in the Sublevel Open-stopes

提出用分段空场法采缓倾斜矿体时，采用侧向爆破抛掷出矿技术来提高矿石的回采率，在分析侧向爆破出矿机理的基础上，提出了侧向爆破抛掷出矿的主要技术措施。并将该技术用于具体矿山，进行了爆破参数的施工设计。

The recovery is improved by adopting lateral pin-point blasting when shallow slope room is mined by means of sublevel open-stopes, the mechanism that small slant angle mine of shallow slope bottom wall is slung to road of accumulate ore along top wall is explained through theortical research and technique design, which is verified by numerical simulation based on practice blasting parameters and room size.