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关于矿块崩落法设计的几点评述Ｄ．Ｈ．Ｌａｕｂｓｃｈｅｒ１崩落块度１．１概述在矿块或盘区后退式崩落中，块度与下列因素有关：①放矿点间距；②放矿控制；③放矿点的利用率；④三次爆破的破坏；⑤二次爆破／破碎的成本；⑥贫化。崩落产生初期块度，其大小是崩落推进过...
Comments on the Design of Cavern Caving H. Laubscher1 Collapse Lime 1.1 Overview The blockiness is related to the following factors in the nuisance or recess retraction: ① spacing of the ore deposit; 放 ore control; 利 utilization rate of the ore deposit; 三 destruction of the third blasting ; ⑤ secondary blasting / crushing costs; ⑥ depletion. The collapse of the initial block, the size of the caving advancing ...