基于模糊层次分析法,将在役地下排水管渠按若干构件进行耐久性评估,考虑各类缺陷对构件耐久性的影响,给出了各层指标的权重,建立了管渠耐久性模糊综合评估模型。利用该模型对管渠结构的耐久性进行半定量化综合评估,并由此推断管渠的剩余使用寿命。利用该方法对南方某城市管渠的剩余寿命进行了评估,验证该方法的可行性。该方法将复杂的管渠的耐久性寿命评估问题科学简明化,可为城市老旧管渠维修加固及耐久性寿命评估提供参考。

Based on the fuzzy analytic hierarchy process, durability assessment of underground drainage pipeline in service was evaluated according to several components. Considering the effects of various defects on the durability of components, the weight of each layer index was given, and a fuzzy comprehensive evaluation model for the durability of drainage pipeline was established. The model was used to semi-quantitatively comprehensively evaluate the durability of the drainage pipeline, and the residual life of the drainage pipeline was predicted based on the evaluated durability. The method was used to evaluate the residual life of the drainage pipeline section in a southern city, for verifying the feasibility of the method. This method scientifically simplifies the complex durability life evaluation of drainage pipeline, and can provide reference for the maintenance, reinforcement and durability life evaluation of old drainage pipeline in city.