模糊集重心理论在隧道瓦斯突出评价中的应用

以隧道瓦斯突出评价为研究对象。选取地质构造、煤层厚度、隧道埋深、瓦斯含量、瓦斯压力、瓦斯放散初速度和煤的坚固性系数作为指标,建立隧道瓦斯突出评价标准;用关联函数确定指标权重;结合模糊集重心理论与最短距离识别准则,构建属性识别模型,对隧道瓦斯突出进行评价。评价结果与可拓评价结果一致,从而验证了该方法的实用性。研究表明,基于模糊集重心理论的属性识别模型用于隧道瓦斯突出评价是可行的,为隧道瓦斯突出评价提供了一种新方法。

Application of Barycenter Theory of Fuzzy Set to Evaluation of Tunnel Gas Outburst

With the evaluation of gas outburst of a tunnel as the object of study,an evaluation standard for tunnel gas outburst is established by choosing geological structure,thickness of coal seam,tunnel depth,gas content,gas pressure,initial speed of gas diffusion and consistence coefficient of coal as the indexes.Index weight is determined by using dependent function.Based on the barycenter theory of fuzzy set and the minimum-distance recognition criterion,an attribute recognition model is established.At last,the model is applied to the evaluation of gas outburst of certain tunnel.The result is consistent with that obtained by the extension method,which demonstrates the feasibility of this method.This study shows that the attribute recognition model based on the barycenter theory of fuzzy set,as a new method,can be applied to the evaluation of tunnel gas outburst of a tunnel.