模糊层次分析法在淤地坝风险评价中的应用

淤地坝是黄土高原地区治理水土流失有效的水利工程措施，其在减少入黄泥沙、淤地造田、防洪减灾、改善生态、促进经济发展等方面发挥着重要作用。但淤地坝的水毁灾害时有发生，建立淤地坝的风险评价体系迫在眉睫。经调研分析，对淤地坝风险进行识别，建立了现状风险、管理风险、失事后果的3层次9指标的淤地坝风险层次分析模型。运用模糊层次分析法对淤地坝各风险的权重进行了计算，并且对淤地坝的安全进行了综合评价。结果表明：模糊层次分析法有效地改进了层次分析法的一致性问题，并且可以简便地对淤地坝的风险进行评价，为淤地坝的风险评价提供了一种新思路。

Application of fuzzy analytic hierarchy process to check dam risk assessment

The check dam is an effective water conservancy engineering measure specifically designed to control water and soil erosion in the Loess Plateau, and it plays an important role in the reduction of sediment inflow to the Yellow River, silt land reclamation, flood control and disaster reduction, as well as ecological and economic development of the plateau. However, check dams are prone to water-damage disasters, it is imminent to establish a risk assessment system for the analysis. According to the investigation and analysis of the check dams afflicted by water-damage disasters, the risks of check dams were identified and a check dam risk hierarchy analysis model with 3 levels was established, including current risk, management risk and accident consequence, which involved in 9 indicators in total. With this model, the weight of each risk factor of the check dams was calculated and the safety status of the check dams were evaluated comprehensively using the fuzzy analytic hierarchy process. The results showed that the fuzzy analytic hierarchy process improved the consistency of the analytic hierarchy process effectively, it can provide a convenient and novice approach for the risk assessment of check dams.