【摘要】 开采技术因素对露天采矿过程中矿石损失、贫化有较大的影响。运用图解分析法对损失率、贫化率的计算公式进行了推导 ,并就采矿工作面的推进方式、矿岩接触处分爆线位置、矿岩分爆面倾角等开采技术因素对矿石损失、贫化的影响进行了分析并得出结论更多还原

【Abstract】 Mining technical factors have great effect on ore loss and dilution in opencasting.The calculation formulas for ore loss rate and dilution rate are derived by graphical analysis method.Analysis is made of the effect of mining technical factors such as the advancing mode of mine face,the position of separate blasting line at the ore rock interface and the incline angle of the separate blasting face of ore and rock on the ore loss and dilution and conclusions are drawn.更多还原