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采用集对分析同一度法,以某矿六采区第四系巨厚松散含水层下煤炭开采为例,根据可供选择的7种开采方案,优选出防水煤岩柱高度设计值、月度产量、吨煤开采成本、采出率4个评价指标,对这4个评价指标进行综合分析,确定出1个最优评价集,详细论述了各个方案与最优评价集的贴近度计算过程,选取贴近度值最大的方案作为最佳方案,确定了不同防水煤岩柱高度下对应的最优开采方案。结果显示该方法的评价结果与多目标决策法的评价结果是一致的。
Taking the coal-mining under quarry loose aquifer in the No.6 mining area of a certain mine as an example, according to the seven kinds of mining options that can be selected, the height of waterproof coal pillar is optimized, and the monthly output , The cost of coal mining, the recovery rate of four evaluation indicators, a comprehensive analysis of these four evaluation indicators to determine an optimal evaluation set, detailed discussion of the various programs and the optimal evaluation set close degree calculation process, select Proximity value of the largest program as the best solution to determine the different waterproof coal pillar height corresponding to the optimal mining program. The results show that the evaluation results of this method are consistent with those of the multi-objective decision method.