为了建立一种计算简单、易于推广的顶煤冒放性评价方法,以克服其他顶煤冒放性评价方法计算量大、主观性强等缺点。分析影响顶煤冒放性的主要因素,并对影响因素进行赋权,采用可拓理论的评价准则,构建了顶煤冒放性评价的可拓模型。将评价模型应用于工程实践,并将评价结果与其他评价模型的输出结果对比分析,结果表明:该方法具有计算简便,预测结果可靠,实用性强等优势。

In order to overcome the shortcomings about a large amount of calculation and strong subjectivity of the present top coal cavability evaluation methods, the authors established a new top coal cavability evaluation method which was easy to calculate and promote. The paper analyzed the major impact factors of top coal C avability, and assigned weight value to those factors. Based on extension theory evaluation criteria, a extension theory model of evaluating top coal cavability was establ ished. The practical results showed that the new top coal cavability evaluation model would have the advantages of simplicity in calculation, reliability of predicted result s and practicability in site.