运用地理信息系统对城市供水管网爆管事故进行处理,可以及时抢修、降低损失,为供水企业科学管理提供分析和决策功能.文中从逻辑网络、爆管检测、关阀分析等方面进行研究.首先建立逻辑网络,基于图论的基本原理,构建管网模型,采用邻接表存储数据；然后是爆管检测,采用流量平衡法建立检测模型,并对模型进行讨论与分析；最后是关阀分析,采用广度优先遍历算法和函数递归调用原理,制定关阀方案,进行扩大关阀分析和影响用户分析,并给出具体实例.文中的研究内容,对于城市供水爆管事故处理具有很好的指导作用.%Dealing with urban water supply network tube rupture accident by using geographic information system can repair timely,reduce losses and provide analytic and decision-making function for scientific management of water undertaking. It is about the research on logical network,pipe burst detection,valve-tumoff analysis and so on. Firstly,it is about the establishing of logical network,constructing pipe network models based on the basic principles of graph theory, and adopting adjacent list to store data. Then, it is about pipe burst detection, establishing detection model by employing flow equilibrium method and making discussion and analysis on the model. Finally,it is about valve-turnoff analysis. Employ breadth-first traversal algorithm and recursive function theory to draw valve-tumoff plan,cany out analysis on expanded valve-tumoff and user influence and offer specific examples. The research content of the article can play an instructional role on pipe burst accident treatment of urban water supply pipe network.
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