10 , and the cumulative stripping ratio is used as a reference index, it is distinguished from the stripping ratio calculated by sections, instead, it represents a cumulative calculation of the total stripping and coal extraction across the entire mining area, and its value does not change much; The section stripping ratio showed a trend of decreasing and then rising, and the rising speed gradually increased.
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Research on boundary optimization of adjacent mining areas in open pit coal mine based on calculation of sectional stripping ratio.
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