数字孪生水网(杭嘉湖平原)综合应用研究

嘉兴市位于太湖流域下游杭嘉湖平原，针对区域内水情多变、洪涝多发、水资源供需矛盾突出等问题，为加强洪涝灾害风险防控，强化水资源监管，优化水资源利用，开展数字孪生平原水网综合应用研究，通过模型分析、功能调用、服务调用、数据融合共享等方式，对雨水情监测、水利工程管理、防汛形势研判、联合调度等模块进行集成， 实现对全域水灾害、水环境的预报预警和预演预案功能。系统运行结果有效提高区域内水灾害监控和态势分析能力，加强洪水风险的统筹管控，增强市、区、县水利工程的协同调度能力。实现由经验防御到智慧防御的转变，最大化地发挥水利工程的排涝调度效益，提升区域整体的防洪排涝和水环境改善能力。研究具有平原区河网数字化改革建设的典型性、代表性，可为全国水利数字化改革提供可复制、参考的经验。

Research on comprehensive application of digital twin water network(Hangjiahu Plain)

Jiaxing City is located in the downstream of the Taihu Lake Basin, in the Hangjiahu Plain. In response to the region''s variable water conditions, frequent floods, and prominent contradictions in water supply and demand, efforts have been made to strengthen flood control and risk prevention, enhance water resource regulation, optimize water resource utilization, and develop integrated research on digital twin plain water networks. Through model analysis, functional and service calls, data fusion, and sharing, various modules such as water and rainfall monitoring, water conservancy project management, flood situation analysis, and joint scheduling have been integrated to achieve functions such as forecasting, early warning, scenario simulation, and contingency planning for water disasters, flood hazards, and water environment throughout the region. The operation results of the system have effectively improved the monitoring and situational analysis capabilities of water disasters in the region, strengthened the overall control of flood risks, and enhanced the coordinated scheduling of water conservancy projects in cities and counties. This transformation from experience-based defense to intelligent defense maximizes the benefits of drainage and scheduling of water conservancy projects, and enhances the overall flood control, drainage, and water environment improvement capabilities of the region. The research represents a typical and representative example of digital reform and construction of river networks in plain areas, providing replicable and referenceable experiences for national digital reform in water conservancy.