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用经济效益确定贫损指标王学杰（开阳磷矿矿务局）矿石开采中贫化损失指标的确定一般参考类似条件矿山或通过试验确定。本文通过对马路坪矿下磷层开采情况的分析，找出贫化损失与矿石售价间的关系，确定最大利润条件下的贫化损失指标。分析马路坪矿８６０中段下磷层自１９...
Determine the loss index with economic benefits Wang Xuejie (Kaiyang Phosphate Mine Bureau) Ore loss indicators in the determination of ore mining General reference to similar conditions mines or determined by the test. In this paper, through the analysis of the situation of the phosphate layer mining in Malouping mine, the relationship between the depletion loss and the selling price of ore is found, and the index of depletion loss under the maximum profit condition is determined. Analysis of the Middle Road, 860 under the phosphate layer from 19 ...