影响采空区危险性因素是多方面的，而且各种影响因素的重要程度有很大差别。基于模糊-层次分析理论对采空区进行综合评判，可在评判过程中按各影响因素的类型建立二级模糊评判模型，对可定量的影响因素采用三相线性隶属函数求解定量因素，对定性的影响因素通过专家打分法来进行量级划分，进而确定判断矩阵；层次分析理论可分析影响采空区危险性各种类型指标等因素，建立评估因素权重集，将判断矩阵与因素权重集运算，可为采空区危险性综合评判提供可靠的理论技术支撑。
There are many risk factors affecting mined out area ,and the extent of importance about each factor is very different .This paper is to conduct a comprehensive evaluation about the risk of the mined-out area on the basis of the principle of fuzzy mathematics and AHP .In the process a factor set for evaluation will be set according to the types of the factors to establish a two-stage fuzzy evaluation model;and use three phase linear laws to determine a member-ship function in order to solve the quantitative elements;then quantize and divide the qualitative factors through expert scoring method to determine the judgment matrix;use the analytic hierarchy process to analyze factors affecting the risk of mined-out area ,therefore set a weight assembly of evaluation factors .And then deal the judgment matrix and the weight assembly ,which has provided a reliable theory support for the risk determination in mined-out area .
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