玉龙铜矿露天开采底宽及采深计算方法研究

Study of Calculation Method of Open-pit Mining Bottom Width and Mining Depth in Yulong Copper Mine

根据玉龙铜矿特殊的矿体特征,在传统计算露天开采底宽和采深方法的基础上加以改进,计算玉龙铜矿露天开采底宽和采深时,将最小底宽放在矿体尖灭的最低端,在最小底宽的基础上横向增加整数倍的底宽,计算出每增加1次的境界剥采比,与经济合理剥采比相比较,最后得出合理的玉龙铜矿露天开采底宽和采深。

According to the special characteristics of ore-body in Yulong Copper Mine, the traditional calculation methods for open-pit mining bottom width and depth are improved. As calculating the open-pit mining bottom width and depth of Yulong Copper Mine, the smallest bottom width is put on the lowest end of the orebody. With minimum bottom width increasing by the integer times, the stripping ratio at every increase is calculated out to find an economic reasonable one. Then, the reasonable open-pit mining bottom width and mining depth are achieved for Yulong Copper Mine.