水利水电技术（中英文）2025，Vol.56Issue(6)：1-12,12.DOI:10.13928/j.cnki.wrahe.2025.06.001
考虑结构因素影响的城市排水系统韧性评估方法
A resilience assessment methodology for urban drainage systems considering the influence of structural factors
摘要
Abstract
[Objective]Frequent global flooding has led to increasing challenges for urban drainage systems,including not only extreme rainfall,but also the uncertain threats posed by potential structural failures such as pipe deterioration and bursting.In or-der to study the level of resilience of urban drainage systems under extreme external rainfall and internal structural failure,[Methods]considering the influence of pipe age and flow velocity,the structural failure probability calculation method is pro-posed,and the overloading scenario without considering structural factors and the composite scenario with considering structural factors are constructed.Based on the comprehensive consideration of the preparatory stage,response stage and recovery stage of the response process of urban drainage system to extreme loads,the resilience assessment indexes are selected and a resilience assessment model based on cloud model is established.The proposed method is applied to the study area for case study analysis.[Results]The result show that the total flood volume in the urban drainage system under the composite scenario increased by more than 60％compared with the exceeding load scenario,and the average flood duration increased by more than 1.0 h.After topolo-gy optimization,the total flood volume in the urban drainage system under the exceeding load scenario and the composite scenario decreased by 24.7％～30.1％and 20.5％～48.4％,respectively.[Conclusion]Structural failure has a certain impact on the re-silience of urban drainage systems,leading to a decrease in drainage capacity;topology optimization can improve the system resil-ience to a certain extent.The result show that the proposed method can effectively assess the resilience of urban drainage systems under extreme loads and provide a reference for the safe operation of urban drainage systems under extreme loads.关键词
城市排水系统/结构因素/极端荷载/韧性评估/气候变化/洪水/降雨/极端天气Key words
urban drainage systems/structural factors/extreme loads/resilience assessment/climate change/flood/rainfall/extreme weather分类
建筑与水利引用本文复制引用
鲁佳慧,刘家宏,刘创,赵梓同,宁占金,林金良..考虑结构因素影响的城市排水系统韧性评估方法[J].水利水电技术（中英文）,2025,56(6):1-12,12.基金项目
水利部数字孪生流域重点实验室开放研究基金项目(Z0202042022) （Z0202042022）
国家重点研发计划揭榜挂帅项目"特大城市外洪内涝灾害链联防联控应急技术与示范"(2022YFC3090600) （2022YFC3090600）
