人民黄河2025，Vol.47Issue(12)：42-46,53,6.DOI:10.3969/j.issn.1000-1379.2025.12.007
近期汛前调水调沙小浪底水库运用方式及指标优化研究
Analysis of Xiaolangdi Reservoir Sediment Discharge Operation Modes and Indicators for Recent Pre-Flood Water and Sediment Regulation
摘要
Abstract
Based on the recent boundary conditions of the Xiaolangdi Reservoir area,the operation methods and sediment discharge indicators of the Xiaolangdi Reservoir for the recent pre-flood water and sediment regulation had been optimized from the perspectives of mitigating res-ervoir siltation,reducing safety risks in downstream river channels,lowering the sandbar at the entrance of the Zhenshui tributary,and in-creasing the reservoir's sediment discharge capacity.The water level for sediment discharge operation should be lower than the sedimentation surface of newly deposited sediments in the main stream channel and the elevation of the internal sedimentation surface of the Zhenshui tribu-tary.About 12 hours before the water level of the Xiaolangdi Reservoir was dropped to the sediment discharge water level,the Sanmenxia Reservoir should first release a small flood process with a discharge of approximately 1 400 m3/s to scour and gradually restore the flow ca-pacity of the river channel.After that,the outflow discharge of the Sanmenxia Reservoir should be increased in real time to around 3 000 m3/s.During the sediment discharge period,the Xiaolangdi Reservoir maintained balanced inflow and outflow operation.Through optimization,during the 2025 pre-flood water and sediment regulation,the maximum outflow sediment concentration of the Xiaolangdi Reservoir is reduced to 250 kg/m3;the outflow sediment volume is 168.3 million tons,and the erosion volume in the reservoir area is 107.0 million tons.Both the outflow sediment volume and the erosion volume rank first among all previous water and sediment regulation before the flood season.关键词
调水调沙/洪峰增值/调度方式/调控指标/小浪底水库Key words
water and sediment regulation/flood peak augmentation/dispatching method/regulatory indicators/Xiaolangdi Reservoir分类
建筑与水利引用本文复制引用
王婷,贾梦豪,马怀宝,任智慧..近期汛前调水调沙小浪底水库运用方式及指标优化研究[J].人民黄河,2025,47(12):42-46,53,6.基金项目
黄河水科学研究联合基金资助项目(U2243241) （U2243241）
中国保护黄河基金会资助项目(CYRF2025-ZZ009) （CYRF2025-ZZ009）
中央级公益性科研院所基本科研业务费专项(HKY-JBYW-2022-06,HKY-JBYW-2024-21,HKY-JBYW-2024-20,HKY-JBYW-2024-22) （HKY-JBYW-2022-06,HKY-JBYW-2024-21,HKY-JBYW-2024-20,HKY-JBYW-2024-22）
