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针对大海则煤矿2号煤层存在的问题,对其采煤工作面的开采方法问题进行模糊评价,基于层次分析法,建立了大采高煤层开采方案选择的指标评价体系,并对指标体系中各种影响因素的权重进行了合理分配,基于模糊数学和矩阵分析理论,建立了模糊综合评判模型。结合大海则煤矿2号煤的实际地质情况,开采方案分为分层开采、放顶煤开采与大采高综采,经模糊综合评价后,最终确定为大采高综采最为合理,这与大海则煤矿现场实际生产采用的开采方法一致,验证了该评价模型的合理性与正确性。
According to the existing problems of No.2 coal seam in Dahai Coal Mine, the paper evaluates the mining methods of the coal mining face, and establishes the index evaluation system based on the analytic hierarchy process, The weight of the influencing factors was rationally distributed. Based on the theory of fuzzy mathematics and matrix analysis, a fuzzy comprehensive evaluation model was established. Combined with the actual geological conditions of No. 2 coal mine in Dahai Coal Mine, the mining scheme is divided into stratified mining, caving coal mining and fully mechanized mining with fully mechanized mining. After the fuzzy comprehensive evaluation, it is most reasonable to determine the fully mechanized mining with large mining height The sea is the same mining method used in actual production at the coal mine site, which verifies the rationality and correctness of the evaluation model.