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本文提出并详细论述了无底柱分段崩落法的截止品位组合问题。分别就直壁条件和斜壁条件下的各种截止品位组合设计了大量研究方案,得出了“各步距盈利最大不等于矿床开采总盈利最大”的重要结论。建议有条件的矿山研究实施。
This paper presents and discusses in detail the cut-off grade combination of the subsea caving method. A large number of research programs have been designed for various combinations of cut-off grades under straight-wall conditions and inclined-wall conditions, and an important conclusion is drawn that “the maximum profit for each step is not equal to the total profit of the ore bed mining.” Recommended conditions for the study and implementation of mines.