隧道健康动态评价模型与应用

Study on dynamic assessment model and its application to tunnel health

在隧道健康安全评价的指标体系及其等级标准的基础上,通过规范化处理样本资料库中的元素,消除了指标类型和量纲的影响后,提出用集对分析方法构造可变模糊集的相对差异度函数,合理的确定了各层相关隧道健康评价指标处于级别标准区间的相对隶属函数,采用乘积标度法确定相关指标权重后,得出了隧道健康模糊综合评价动态模型。确定健康级别指标特征值后,结合实例计算证明了文中所提方法的科学性与合理性,有利于推动可变模糊集理论在土木工程领域的进一步发展。

This paper uses normalized elements in the sample database to avoid the influence of index type and dimension.Basing on the index system and grade standard of tunnel health safety assessment,it puts forward the relative difference function of variable fuzzy set by the method of set pair analysis and confirming reasonable the relative membership function of the related health indexes in every level and its level standard interval,and develops the assessment model of tunnel health after confirming the relative indexes right by multiplication scale method.Once confirming the eigenvalue of health levels,some samples are given to verify the scientificity and rationality of the method in,the results show that the calculation process is visual,simple,strong currency,result is reasonable and precision is high.The model can be used for various system assessment problems and it＇s propitious to promote the more use of variable fuzzy sets in the field of civil engineering.