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本文针对山达克露天铜矿，论述了利用“ＯＰＭ”电算程序方法国定开采境界的正确性，分析了台阶高度对生产过程各环节的影响，确定台阶高度时应综合考虑各种因素。对于开拓运输方案和边界品位可能出现的问题提出了对策。
In this paper, for the Shandak copper open pit, the correctness of the national exploitation by “OPM” method is discussed. The influence of the height of the step on the production process is analyzed. When determining the height of the step, various factors should be considered synthetically. Proposed solutions to problems that may arise in developing transport solutions and border quality.