经济因素对露天矿最终境界的影响

针对吉林省某露天菱镁-白云石矿的赋存特点,构建相应的矿床数值模型——台阶模型,地表标高模型和矿床品位模型,并用基于锥体排除法研发的MetalMiner软件系统对该矿山进行最终境界优化设计,分析讨论了经济因素对最终境界的影响。结果发现,不同经济参数对于最终境界的影响程度不同;在不同经济参数变化的影响下,矿区境界变化的位置不同;不同矿区的最终境界范围变化对于经济参数变化的灵敏度不同。

Effects of Economic Factors on Final Pit of Open-pit Mine

According to the occurrence characteristics of an open magnesite-dolomite ore in Jilin province, corresponding numerical models of the deposit were constructed, including surface elevation model, step model and deposit quality model, and the metallurgy software based on cone exclusion method was used to optimize the final pit of it. The case of final pit changing with economic factors was analyzed. The findings are as follows: different economic parameters have different influence on the final pit and the position. Under the influence of different economic parameters, the location of the final pit changes varies. And the sensitivity to the change of economic parameters is different for the change of final pit in different mining areas.