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为了准确判断不同煤层的突出危险程度的大小,分析了影响煤与瓦斯突出的地应力、瓦斯潜能和煤的物理-力学性质在突出中的作用,建立了煤与瓦斯突出综合评价指标体系。在此基础上利用基于熵权的TOPSIS方法对煤与瓦斯突出危险进行了综合评价,应用结果表明:煤与瓦斯综合评价指标体系,综合考虑了地应力、瓦斯潜能和煤的物理-力学性质3个方面,比较全面,可以避免判断的片面性;基于熵权的TOPSIS方法利用灰熵理论确定评价指标的权重-熵权,避免了权重确定中的主观性或计算复杂性。
In order to accurately judge the magnitude of the prominent danger of different coal seams, the paper analyzes the role of the geostress, gas potential and the physical-mechanical properties of coal that affect the outburst of coal and gas outburst, and establishes a comprehensive evaluation index system of coal and gas outburst. On this basis, the TOPSIS method based on entropy weight is used to evaluate the coal and gas outburst danger. The application results show that the comprehensive evaluation index system of coal and gas comprehensively considers the geostress, gas potential and the physical-mechanical properties of coal. On the other hand, TOPSIS based on entropy weight can determine weight-entropy of evaluation index by using gray entropy theory, avoiding subjectivity or computational complexity in weight determination.