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针对目前煤层突出危险性程度难以准确判定的难题,基于属性数学理论和方法,建立了煤层突出危险性的属性综合评价模型。模型选用煤层瓦斯压力、瓦斯放散初速度、煤的坚固性系数、煤体破坏类型、综合指标D值和K值等6项指标作为煤层突出危险性的评价指标;应用属性数学理论,构造了各项指标的属性测度函数,定义了单指标属性测度和综合属性测度的计算方法;采用相似数和相似权的方法客观给各项指标赋权,用置信度准则进行属性识别,给出评价结果。通过贵州盘县的煤矿突出实例对模型进行了验证,结果表明该模型的评价结果与实际情况基本一致,可应用于煤层的突出危险性评价中。
Aiming at the difficult problem that the critical dangerous degree of coal seam is difficult to be accurately judged at present, based on attribute mathematical theory and method, the comprehensive evaluation model of coal seam salient danger is established. The model chooses 6 indexes of gas pressure of coal seam, initial velocity of gas drainage, solidity coefficient of coal, type of coal damage, comprehensive index D value and K value as evaluation index of salient danger of coal seam. By using attribute mathematical theory, The attribute measure function of item index defines the calculation method of the single index attribute measure and the comprehensive attribute measure. Employing the method of similarity and similarity weight objectively weights each index and uses the confidence criterion to identify the attribute, and gives the evaluation result. The model was verified by the outstanding example of coal mines in Panxian County, Guizhou Province. The results show that the evaluation results of this model are basically in accordance with the actual situation and can be applied to the evaluation of salient hazards in coal seams.