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作 者:戴雷杰 DAI Leijie(Shanghai Municipal Water Supply Control&Monitoring Center,Shanghai 200080,China)
出 处:《净水技术》2025年第4期49-55,61,共8页Water Purification Technology
基 金:上海市水务局科研项目(沪水科2023-08)。
摘 要:【目的】管道分布承载了大量的地理环境因素和丰富的拓扑学与图论知识,由于城市不同区域间供水管道的结构差异性与运输效率的不同,使得针对城市供水管网的拓扑结构分析及其评价指标的选取工作变得尤为重要。目前已有大量网络系统的研究着眼于拓扑结构的分析,但针对于供水网络系统管道的拓扑研究还相对较少。为拓宽供水管网的研究领域并进一步提高未来调度的效率【方法】研究基于图论和复杂网络研究的理论选取典型城市———上海市为研究对象,针对上海市11个供水区域的管网拓扑结构进行研究,探讨了连接度、成环率及单管风险率3个拓扑指标在供水输配系统安全评价中的适用性,通过space-L法建模并计算各供水区域拓扑指标得分,提出各区域间差异的原因并针对3个指标进行评价。【结果】从结果来看,连接度与成环率2个指标呈现明显的空间差异性,整体而言,浦东威立雅的连接度与成环率是划分区域中最高的,崇明则是2个指标值最低的区域。金山区的枫泾镇单管风险率最高。【结论】文章对拓扑指标的研究对供水管网安全评价具有重要意义,可以帮助识别脆弱环节、评估应急响应能力,提高供水的安全性和可靠性。此外,文章率先在供水管网中引入成环率、单管风险率等指标,其评价方法可为其他城市提供借鉴。[Objective]Pipeline distribution carries a large number of geographical environmental factors and rich knowledge of topology and graph theory.Due to the structural differences and transportation efficiency of water supply pipelines in different areas of a city,the topological structure analysis of urban water supply networks and the selection of evaluation indices have become particularly important.At present,a large number of network system researches focus on the analysis of topology structure,but there are relatively few researches on the topology of pipeline in water supply network system.In order to broaden the research field of water supply network and further improve the efficiency of future dispatching,[Methods]this study selected Shanghai,a typical city,as the research object based on the theory of graph theory and complex network research,and studies the pipe network topology of 11 water supply areas in Shanghai.The applicability of three topological indices of connectivity,ring formation rate and risk rate of single pipe in safety evaluation of water supply transmission and distribution system was discussed.space-L method was used to model and calculate the topological index scores of each water supply region,and the reasons for the differences among regions were proposed and evaluated according to the three indices.[Results]The result showed that the two indices of connectivity and ring formation rate show obvious spatial differences.On the whole,the connection degree and ring formation rate of Pudong Veolia were the highest among the divided regions,while Chongming was the lowest of the two indices.Fengjing Town of Jinshan District had the highest single pipe risk rate.[Conclusion]The study of topological indices in this paper is of great significance to the safety evaluation of water supply network,which can help to identify vulnerable links,evaluate emergency response ability,and improve the safety and reliability of water supply.In addition,this paper takes the lead in introducing indicators such
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