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为了快速准确的评价采空区危险性,针对影响采空区失稳的各种非线性指标,运用熵权法和集对分析理论建立了采空区危险性评价模型。选取岩体结构、地质构造等14个指标作为评价指标体系,基于集对理论与模糊数学方法对采空区危险性评价指标与相应指标标准建立集对联系度表达式,并用熵权法确定各指标的客观权重,依照置信规则法进行等级判定,最后得出采空区危险性的评价结果。将建立的模型评价广东省大宝山矿区12个采空区的危险性,并与其它评价方法结果和实际情况进行了对比。研究结果表明,集对模型简单实用,准确性高,该方法可作为采空区危险性评价的一种辅助方法。
In order to evaluate the danger of goaf rapidly and accurately, aiming at the various non-linear indexes that affect the instability of goaf, the author establishes the risk assessment model of goaf by using entropy method and set pair analysis theory. 14 indexes such as rock mass structure and geological structure are selected as evaluation index system. Based on set theory and fuzzy mathematics method, the risk assessment index of goaf and the corresponding index standard are established, and the entropy weight method is used to determine each The objective weight of the index, according to the rules of confidence rules to determine the level, and finally come to the risk of mined-out area evaluation results. The model was established to evaluate the danger of 12 goafs in the Dabaoshan mine in Guangdong province and compared with the results of other evaluation methods and the actual situation. The results show that the set pair model is simple, practical and accurate. This method can be used as an adjunct to the risk assessment of goaf.