地下管道震害预测实用方法的研究

本文根据震害调查分析和试验研究结果，建立了由环境因素和管道结构参对地下管道震害进行二级多因素模型综合评判的方法，文中给出了计算，评价构成二级评判因素地震烈，场地类型，工作状态和结构种类正态模糊范数ak的方法，并在地下管道震害关联分析和试验基础上，给出了二级模糊评判的权向量，本文为面广量大的已那建下管道的震害预测工作提供了一套方便实用的计算方法。

Research on practical method for predicting earthquake damage to underground pipelines

On the basis of earthquake damage survey analyses and experimental research results, by considering the earthquake damage prediction of underground pipelines with the factors of environment and the parameters of pipeline construction, a fuzzy synthetical estimation way is shaped, which is two-level with multi-element. The paper shows calculation and estimation ways of normal fuzzy number ak of the following parameters which consist of two-level estimation factors: earthquake intensity, site type, working state and structure type. Also the paper shows two -level fuzzy estimation weight vectors according to gray relation analyses of earthquake damage to underground pipelines. A series of practical methods are provided, which will be useful to predict earthquake damage for widely existing underground pipelines