隧道瓦斯突出危险性评价的属性识别模型与实例 - Ingenta Connect.PDFVIP

摇 第36卷第8期 煤摇 摇 炭摇 摇 学摇 摇 报 Vol.36摇 No.8摇 摇 2011年 8月 JOURNAL OF CHINA COAL SOCIETY Aug.摇 2011摇 摇 摇 文章编号:0253-9993(2011)08-1322-07 隧道瓦斯突出危险性评价的属性识别模型与实例 文 畅平 (中南林业科技大学 土木工程与力学学院,湖南 长沙摇 410004) 摘摇 要:基于属性数学理论建立隧道瓦斯突出预测与危险性分级的属性识别模型,以弥补现有隧道 勘测设计阶段瓦斯突出评价方法的不足。 首先确定隧道瓦斯突出预测的评价指标与危险性分级标 准,然后进行评价指标的属性测度分析,通过构造属性测度函数以计算单指标属性测度和样本综合 属性测度,最后应用置信度准则对隧道样本的瓦斯突出进行属性识别,从而建立隧道勘测设计阶段 瓦斯突出评价的属性识别模型。 在工程实例分析研究中,通过属性测度分析和计算,得到了隧道瓦 斯突出的预测结果,评价结果与物元可拓评判法以及D、K值法的评价结果有较好的一致性。 由于 属性数学理论能很好地解决具有多个模糊属性问题的综合评价,且置信度准则是根据评价集具有 有序性这一特点而提出的,因而可使评价结果更为可靠。 关键词:瓦斯隧道;瓦斯突出;属性识别;属性测度分析 中图分类号:TD713郾2摇 摇 摇 文献标志码:A Attribute recognition model and its application of fatalness assessment of gas burst in tunnel WEN Chang鄄ping (College of Civil Engineering andMechanics,Central South University of Forestry and Technology,Changsha摇 410004,China) Abstract:Inordertoimprovethepresentmethodsof quantitatively assessmentof gasburstduringtunnelconstruction, attribute recognition model based on attribute mathematical theory wasdevelopedfor assessment of gasburst intunnel at the prospecting stage.Firstly,based on the analysis of main causes of gas burst in tunnel,seven parameters were chosen as the criterion indices for identification and classification of fatalness assessment of gas burst in tunnel;sec鄄 ondly,attribute measurement functions were rigorously constructed to compute attribute measurement of single index and synthetic attribute measurement;lastly,the identification and classification of fatalness assessment of gas tunnel sampleswere recognized by the confidence criterion,then attribute recognition model was proposed for comprehensive assessment