Determination of appropriate mining scheme and consideration of affecting factors is crucial for mining enterprises.Based on the preliminary mining scheme,an improved analytic hierarchy process and fuzzy mathematics theory are used to optimize the mining scheme according to geographical characteristics and mining technical conditions of the gold mine in Shandong province.A hierarchical structure model of influencing factors is established considering the main factors affecting the selection of mining schemes.Based on the improved analytic hierarchy process,that is,the three-scale method,the weight of each evaluation index of the mining scheme is calculated.The linear function method and the binary comparison ranking method are used to realize the standardization of decision-making indicators and determine the membership matrix,and then the fuzzy mathematics comprehensive evaluation model is constructed.Finally,the comprehensive superiority of the mining schemes to be selected is 69.5％,67.6％and 65.4％,respectively according to the fuzzy mathematics theory.Therefore,the optimal mining scheme for gently inclined thick and large ore bodies is determined to be the upward slicing cemented filling mining method.
关键词
开采方案/缓倾斜厚大矿体/改进的层次分析法/三标度法/模糊综合评价
Key words
mining scheme/slowly inclined large and thick ore body/improved analytic hierarchy process/three-scale method/fuzzy comprehensive evaluation
维普
万方数据