无底柱分段崩落法不贫化放矿理论基础（续完）

Theory Basis or Ore-drawing without Dilution for Sublevel Caving Method(Finished)

论述矿石损失贫化的经济分析和计算方法，应用有效金属量、盈利额、工业矿石全经济价值以及矿石损失贫化的经济损失等指标，分析判定各种放矿方案的优劣．

The economic analysis and calculation method of ore dilution-loss are discussed,and theadvantages and shortcoforngs of various ore-drawing schemes are analysed by the index of effective metal content,profit volume,full economic value of industrial ore and economic loss caused by ore dilutionloss, ect.