北京市永定河流域水工程调度实践与思考——以海河“23·7”流域性特大洪水应对为例

Practice and reflection on water works regulation in the Yongding River Basin of Beijing City—Case study of the response to the Haihe"23·7"basin-wide extreme flood

2023年7—8月,受2305号台风“杜苏芮”北上和西北太平洋副热带高压异常偏北影响,海河流域发生“23·7”流域性特大洪水。北京市永定河段首次启用大宁水库、滞洪水库分蓄洪水。围绕本次北京市永定河流域水工程调度实践,简述洪水预报与调度策略,梳理斋堂水库、三家店拦河闸、卢沟桥枢纽调度过程,总结实施预报调度、精细调度、流域统一调度等经验,从精准预报调度技术、突发状况应急处置、智能化调度能力提升等方面提出对策建议。

From July to August 2023,the Haihe River Basin experienced a"23.7"basin-wide catastrophic flood due to the northward movement of Typhoon 2305"Doksuri"and the abnormally northward influence of the subtropical high pressure in the northwest Pacific.The Yongding River section in Beijing has been opened for the first time with the use of the Daning Reservoir and the other two detention reservoirs for flood diversion and storage.Based on the practice of water works regulation in the Yongding River section in Beijing,this paper briefly describes flood forecasting and scheduling strategies,sorts out the scheduling processes of Zhaitang Reservoir,Sanjiadian Sluice,and Lugouqiao complex,summarizes the experience of implementing forecasting regulation,fine scheduling,and unified basin-wide regulation,and proposes countermeasures and suggestions from the aspects of precise forecasting scheduling technology,emergency response to unexpected situations,and improvement of intelligent scheduling capabilities.