Calculation Method and Application of Economic Stripping Ratio
Based on engineering design examples,this paper discusses the calculation method and applicable conditions of economic stripping ratio for open-pit mining.The calculation methods of economic stripping ratio of Zhijian Coal mine are analyzed and discussed.The economic stripping ratio calculated by the profit comparison method of raw ore and the cost comparison method is 20.3m3/m3 and 26.9m3/m3 respectively,and 20m3/m3 is taken as the index of economic stripping ratio of the ore deposit.
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