Fuzzy evaluation method of pipeline passing through dike based on Uncertain Analytic Hierarchy Process

Abstract

In view of the characteristics of many factors influencing the safety risk of the pipeline through the embankment, which are hierarchical and uncertain, this paper combines the uncertain analytic hierarchy process (AHP) and fuzzy operation to establish a fuzzy comprehensive evaluation model. The uncertainty analytic hierarchy process (AHP) was used to determine the weight of the evaluation indicators, considering the uncertainty of the relative importance of the evaluation indicators at the same level, the credibility of experts and the degree of difference. According to the principle of maximum membership degree, the evaluation grade of the pipeline is determined. Finally, the feasibility of this method is verified by combining with specific engineering examples to reduce the potential loss and provide the safety management of the pipeline.