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本文主要介绍一种在矿房充满崩落围岩的挤压条件下,以分段大爆破法回采间柱的经验;该法可使矿柱的回采率和贫化率均达到较好指标。
This paper mainly introduces the experience of using a large-scale blasting method to recover the bollards under the extrusion conditions of the cavern full of caving rocks. This method can make both the recovery rate and the depletion rate of the ore columns reach a better target.