隧道瓦斯灾害危险性快速评价方法研究

项目名称： 隧道瓦斯灾害危险性快速评价方法研究

项目编号： No.41302244

项目类型： 青年科学基金项目

立项/批准年度： 2014

项目学科： 天文学、地球科学

项目作者： 康小兵

作者单位： 成都理工大学

项目金额： 23万元

中文摘要： 近年在我国在基础交通建设时，遇到了一系列穿越煤系地层和赋存瓦斯的隧道，隧道瓦斯灾害事故频繁发生，需要一种简易量化的评价方法快速对拟建隧道进行瓦斯灾害危险性评价。分析瓦斯隧道这一对象的关键问题，选择100多座已建瓦斯隧道为样本，通过对瓦斯隧道所处地质环境条件和工程设计参数的研究，从各种纷乱复杂的影响因素中确定评价指标；采用二值法和专家打分法对指标进行标准化处理与量化取值；通过评价指标相互作用关系分析，利用AHP法与关系矩阵法获取指标权重，作为对比研究，在评价指标的筛选、指标量化方法引入数量化理论；按照样本隧道特征，划分瓦斯危险性等级并提出对应的防治措施；引入模糊数学进行隧道瓦斯灾害危险性快速评价并提出较适应的方法；通过评价模型应用于在建瓦斯隧道中的反馈进一步修正评价模型，最终建立快速评价方法。

中文关键词： 西南山区；瓦斯隧道；形成机制；指标量化；评价模型

英文摘要： In recent years, a simple quantitative method is needed to estimate the danger of the gas disaster for tunnels to be built, since a series of tunnels traversing coal-bearing strata abundant in gas, in which selection and quantification of the evaluation indicators are critical and difficult. Contraposing such concrete key issue, choosing more than 100 finished gas tunnels, our research decides the basis to extract the evaluation indicators through the analysis and study of geological environment conditions and engineering designing parameters in these gas tunnel programs ; uses the AHP and relation matrix method to obtain index weight on the basis of indicators' quantification and through the analysis on mutual-effect relationships among these indicators ; as a study for comparison ,the sift of the index or index quantification method would be introduced into the quantification theory ; according to the actual characteristics of our tunnel , divides the gas-danger into unparalleled levels and put forwards the corresponding prevention and cure measures; imports ambiguous-math and grey theory to the appraising method for gas tunnel danger; further modifies estimating methods according to the feedback-info from the practical use of these methods when erecting gas tunnels and eventually finish the establishment of t

英文关键词： Southwest mountainous area；Gas tunnel；Formation mechanism；Quantitative index；Evaluation model