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采用集对分析同一度方法,以某矿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,确定出一个最优评价集,并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,作为六采区内各区段煤层开采方案的依据。
Using the method of set pair analysis of the same degree, taking the coal mining under the Quaternary macroregular loose aquifer in a mine as an example, according to the available seven kinds of mining options, the design value of waterproof coal rock pillar height, monthly output, ton coal Mining cost, recovery rate of four evaluation indicators, a comprehensive analysis of these four evaluation indicators to determine an optimal evaluation set and detailed discussion of the various programs and the optimal evaluation set of closeness calculation process, select the closeness value The largest program as the best solution to determine the different waterproof coal pillar corresponding to the optimal height of the mining program, as the six mining areas within the coal seam mining program based.