基于AHP-模糊综合评价法的城市排水管网状态和运行效能评价——以淮安市淮安区为例

Evaluation of the state and operational effectiveness of urban drainage pipe network based on AHP-fuzzy comprehensive evaluation method:taking Huai'an District of Huai'an City as an example

掌握排水管网的建设状态及运行状况,有利于有针对性地制定排水管网养护与修复决策。构建了基于服务性能、建设状态、维护管理的包含14项指标的城市排水管网状态和运行效能评价指标体系,并结合层次分析法(AHP)-模糊综合评价法,对淮安市淮安区管网的状态和运行效能进行了综合评价。结果表明:影响淮安区排水管网状态和运行效能的因素主要为生活污水集中收集率、雨污分流比、污水处理率和管网维护水平,这4项指标权重之和大于另外10项指标的权重之和;淮安区排水管网综合评价水平为中等偏上,其中排水管网的服务性能以及维护管理处于中等偏上水平,建设状态处于中等偏下水平。结合淮安区管网普查的结果,提出在日后的管网维护工作中,应重点开展管网病害和管道缺陷治理。

Grasping the construction status and operating status of the drainage pipe network is conducive to making targeted decisions on the maintenance and repair of the drainage pipe network.An evaluation index system for the status and operation efficiency of urban drainage pipe network including 14 indexes was established based on service performance,construction status,and maintenance management,and combined with Analytic Hierarchy Process(AHP)-fuzzy comprehensive evaluation method,the status and operation efficiency of the pipe network in Huai'an District,Huai'an City were comprehensively evaluated.The results showed that the main factors affecting the status and operating efficiency of the drainage pipeline network in Huai'an were the centralized collection rate of domestic sewage,the rain and sewage diversion ratio,the sewage treatment rate and the maintenance level of the pipeline network.The sum of the weights of the 4 indicators was greater than the sum of the weights of the other 10 indicators.The comprehensive evaluation level of the drainage pipe network in Huai'an District was above the medium level,among which the service performance and maintenance management of the drainage pipe network were above the medium level and the construction status was below the medium level.Based on the results of the general survey of the pipeline network in Huai'an District,it was proposed that the management of pipeline network diseases and pipeline defects should be the focus of pipeline network maintenance work in the future.