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针对老采空区稳定性影响因素的不确定性、模糊性和复杂性等特点,将模糊数学与可拓学相结合,提出了老采空区稳定性的模糊可拓评价模型。在分析老采空区稳定性影响因素的基础上,建立评价指标体系,采用模糊隶属函数对定性、定量指标进行规格化处理,并制定老采空区稳定性评价准则;根据物元理论构建模糊物元及其经典域、节域,以模糊群决策法确定各影响因素的权重,通过计算综合关联度,评判老采空区稳定性等级;最后,以一个老采空区为例进行稳定性评价,得出与实际情况相一致的结论。研究分析表明,模糊可拓评价模型用于老采空区稳定性评价是可行的,该模型较全面地反映了多种因素对老采空区稳定性的综合影响,可为老采空区上方兴建建筑物提供技术支持。
In view of the uncertainty, fuzziness and complexity of the influencing factors of the stability of the old goaf, the fuzzy mathematics and extenics are combined to propose the fuzzy extension evaluation model of the stability of the old goaf. Based on the analysis of the influencing factors of the stability of the old goaf, the evaluation index system is established. The fuzzy membership functions are used to normalize the qualitative and quantitative indexes and the criteria for evaluating the stability of the old goaf are established. Material element and its classical domain and domain, the fuzzy group decision method is used to determine the weight of each influencing factor, and the stability degree of the old goaf is evaluated by calculating the comprehensive degree of correlation. Finally, taking an old goaf as an example, the stability Evaluation, draw conclusions consistent with the actual situation. The research shows that it is feasible to use the fuzzy extension evaluation model to evaluate the stability of the old goaf. The model comprehensively reflects the comprehensive effect of various factors on the stability of the old goaf, which can be above the old goaf Construction of buildings to provide technical support.