本文探讨了矿石开采损失和贫化的原因,并对开采损失和贫化率的计算公式作了进一步的研究。目前计算矿石的开采损失运用下列公式:式中Π——坑内的矿石开采损失率,%;D——采出的矿石量(毛矿),吨;Б——坑内报废平衡表内矿量;Q——采出矿石的有益矿物品位,%;b——混入矿石中的废石有益成分品 This article explores the causes of loss and depletion in ore mining and makes further studies on the formulas for calculating the losses and rates of depletion. The current calculation of ore mining losses using the following formula: Where Π - mine pit mining loss rate,%; D - the amount of ore recovered (wool), ton; Б - pit balance within the mine balance; Q - beneficial mineral ore mining grade,%; b - mixing beneficiation of waste rock ingredients in the ore