人民珠江2024，Vol.45Issue(1)：122-130,9.DOI:10.3969/j.issn.1001-9235.2024.01.012
红水河龙滩水电站区间河系洪水预报方案研究
Study on River System Flood Forecasting Scheme for Longtan Hydropower Station Interval in Hongshui River
摘要
Abstract
Longtan Hydropower Station is a flood control project in the Pearl River Basin,but there is currently a lack of a comprehensive river system flood forecasting scheme.In order to give full play to the flood control and storage function of Longtan Hydropower Station,tributary control stations such as Leigongtan,Moyang,Pinglihe,Pinghu,and Xianrenqiao are selected,and the key areas of concern are determined through the analysis of important sub-intervals.The river system flood forecasting scheme for the Longtan Hydropower Station interval is constructed by using the Xin'an River three-source runoff generation model,three-source lag routing convergence model,and Maskingen convergence algorithm.The research results show that the proportion of the maximum inflow flood volume of Longtan Hydropower Station is usually in uncontrolled intervals,followed by the tributaries in Guizhou Province(Mengjiang River,Bawang River,Caodu River,and Liudong River),which are the focus of flood forecasting.The total average relative peak flow error and the average relative flood volume error in the river system flood forecasting scheme are both 10%,and the average deterministic coefficients are above 0.75.The overall results are relatively accurate.Therefore,the river system flood forecasting scheme for the Longtan Hydropower Station interval can be applied to real-time flood operation forecasting,and it lays a solid foundation for further improving the"forecast,early warning,rehearsal,and contingency plan"capability.关键词
新安江模型/河系洪水预报/无控区间/龙滩水电站Key words
Xin'an River model/river system flood forecasting/uncontrolled interval/Longtan Hydropower Station分类
建筑与水利引用本文复制引用
杜勇,付宇鹏,韦永江,李宗泰..红水河龙滩水电站区间河系洪水预报方案研究[J].人民珠江,2024,45(1):122-130,9.基金项目
水利部重大科技项目(SKR-2022038) （SKR-2022038）
中国大唐集团有限公司(CDT-LTHPC-X-2389) （CDT-LTHPC-X-2389）
