摘要
本文对张马屯铁矿二步矿房回采中产生大块数量多的原因进行了详细分析,确定使用挤压爆破来解决问题并收到良好效果。
This paper analyses the reason that there are a quantity of large fragmentation to produce when extraction the sechamber. We confirm to use the tight blasting to solve the problem and win good effect.
出处
《有色金属(矿山部分)》
2010年第4期33-35,共3页
NONFERROUS METALS(Mining Section)
关键词
挤压爆破
全尾砂胶结充填
降低大块率
tight blasting
cemented full tailing backfilling
cut down the boulder frequency