作　　者： ; ; (李俊升）; (张晓）; (王运周）;

机构地区： 长安大学公路学院

出　　处： 《西南大学学报（自然科学版）》 2010年第3期162-166,共5页

摘　　要： 服役公路隧道可靠性是隧道结构加固、维修的基础.为了解服役公路隧道结构可靠性,根据模糊物元分析法原理,提出基于熵权的模糊物元分析方法.把隧道结构的状态级别作为物元的事物,用衬砌裂缝、衬砌厚度、混凝土强度、衬砌背后空洞、渗漏水等评价指标及其相应的模糊量值构造复合模糊物元.通过关联度计算,得到服役公路隧道可靠性评价结果.并将分析模型应用到某公路隧道结构可靠性评价,取得了良好的效果,分析结果比传统的定性方法更为准确.为有针对性的制定合理的隧道养护对策和措施,及时进行隧道维修与加固提供科学的决策依据;也为进一步深入开展服役公路隧道可靠性研究提供借鉴和参考. Reliability analysis is the premise for reinforcing and maintaining existing highway tunnels. In order to understand the structure reliability of existing highway tunnels, an entropy weight based fuzzy matter-element evaluation method was developed according to the fuzzy matter-element analysis method. First, the grade of the condition of tunnel structure was taken as the object of matter element and the composite fuzzy matter-elements were constructed considering such factors and their evaluation indexes as cracks of concrete lining, lining thickness, concrete strength, cavities behind the lining and water leakage. Then, the reliability evaluation results of existing tunnel structure were obtained by relevancy calculation. Desirable results, which were better than those obtained with the traditional quantitative methods, were achieved when this fuzzy matter element evaluation model was applied to reliability evaluation of one highway tunnel structure.

关 键 词： 可靠性评价 模糊物元 熵权法 服役公路隧道

领　　域： [建筑科学] [交通运输工程]