城镇供水管网灾后韧性优化技术  

Resilience Optimization Technology of Urban Water Supply Network after Disaster

作　　者：王立彪 张卫平 张清周 秦亚培 吴伟峰 周华珍 郑家骏 张淼佳 厉海东 柳景青 WANG Libiao;ZHANG Weiping;ZHANG Qingzhou;QIN Yapei;WU Weifeng;ZHOU Huazhen;ZHENG Jiajun;ZHANG Miaojia;LI Haidong;LIU Jingqing(Hangzhou Yuhang Water Affairs Holiding Group Co.,Ltd.,Hangzhou 311100,China;Binhai Industrial Technology Research Institute of Zhejiang University,Tianjin 300457,China;College of Civil Engineering and Architecturef Zhejiang University,Hangzhou 310058,China)

机构地区：[1]杭州余杭水务控股集团有限公司,浙江杭州311100 [2]浙江大学滨海产业技术研究院,天津300457 [3]浙江大学建筑工程学院,浙江杭州310058

出　　处：《净水技术》2022年第S01期71-77,171,共8页Water Purification Technology

基　　金：杭州余杭水务控股集团创新课题(YHSW21001)。

摘　　要：提高供水管网系统应对自然灾害(如地震)的韧性是实现可持续城镇水管理的关键问题。这要求水务相关部门能够快速响应灾害事件,特别是高效使用有限资源以快速恢复正常供水,同时最大程度地减少灾害的负面影响。现有研究主要侧重评估供水系统的韧性,但针对通过优化灾后维修方案以提高供水系统韧性的研究非常匮乏。为此,文中提出了一种供水管网灾后韧性优化的理论框架与技术体系。该框架采用6个指标联合定量分析灾后修复过程中系统的韧性变化,同时,建立高效的优化算法(TGA)以快速求解该动态优化问题。采用真实复杂供水管网对所建立的理论和技术方法进行验证,结果表明,方法能有效地确定地震后该复杂供水管网系统的最佳修复方案。同时,获得以下结论:最佳修复方案在很大程度上取决于灾后供水管网的损坏特征;由于管道更换所需时间较长,受损区段的更换倾向于修复的中后期阶段;由于供水管网系统内复杂的水力相互作用关系,任何受损管道的维修对整个系统的水力影响较大,需要统筹考虑。Improving the resilience of water supply systems to natural disasters such as earthquakes is a key issue for sustainable urban water management.This requires water authorities to be able to respond quickly to disaster events,in particular to use limited resources efficiently to quickly restore normal water supply,while minimizing the negative impact of disasters.Existing studies mainly focus on assessing the resilience of water supply systems,but there is a lack of research on improving the resilience of water supply systems by optimizing post-disaster maintenance programs.Therefore,this paper proposes a theoretical framework and technical system for post-disaster toughness optimization of water supply network.In this framework,six indicators are used to quantitatively analyze the toughness variation of the system in the process of post-disaster recovery,and an efficient optimization algorithm(TGA)is established to solve the dynamic optimization problem quickly.In this paper,a real complex water supply network is used to verify the established theory and technical method.Results show that this method can effectively determine the optimal restoration scheme of the complex water supply network system after the earthquake,and the following conclusions are drawn.Optimal restoration scheme depends largely on the damage characteristics of the water supply network after the earthquake.Due to the long time required for pipeline replacement,the replacement of damaged sections tends to be in the middle and later stages of repair.Due to the complex hydraulic interaction within the water supply network system,the maintenance of any damaged pipeline has a great impact on the hydraulic power of the whole system and needs to be considered in an overall manner.

关 键 词：供水管网系统 韧性评估 灾后修复 动态优化 进化算法 

分 类 号：TU991[建筑科学—市政工程]