人民黄河2025，Vol.47Issue(11)：50-54,78,6.DOI:10.3969/j.issn.1000-1379.2025.11.007
万家寨、龙口水库2022年联合排沙调度效果分析
Analysis of the Joint Sediment Discharge Operation of Wanjiazhai and Longkou Reservoirs in 2022
摘要
Abstract
In order to restore reservoir storage capacity,a joint sediment discharge operation was implemented at the Wanjiazhai and Longkou reservoirs from August 30 to September 7,2022.The key findings include:a)Wanjiazhai Reservoir achieves a scouring volume of 26.65 mil-lion tons with a sediment discharge ratio(SDR)of 935.42%,while Longkou Reservoir discharges 43.09 million tons(SDR:144.40%).Their combined SDR reaches to 1 350.78%,significantly recovering storage capacity.b)Compared to 2011-2018 operations,post-2018 flushing efficiency is improved markedly.The SDR of Wanjiazhai Reservoir has shown a significant growth trend.Longkou Reservoir has changed from siltation to scouring,and the combined sediment discharge effect has been optimized.c)During the 40-hour drawdown opera-tion period at Sanmenxia Reservoir,the SDR reaches to 995.78%(scouring:27.599 9 million tons),whereas the SDR of Xiaolangdi Reser-voir is only 3.99%SDR(deposition:38.91 million tons).d)The overall siltation in the lower reaches of the Yellow River is 1.809 7 million tons(SDR:32.2%).It is suggested to optimize the timing and discharge parameters for the joint operation of reservoir groups on the main river channel to enhance overall sediment reduction benefits.关键词
水库排沙/泥沙冲淤/排沙比/联合排沙调度/万家寨水库/龙口水库Key words
sediment discharge/scouring and siltation/sediment discharge ratio/joint sediment discharge operation/Wanjiazhai Reservoir/Longkou Reservoir分类
建筑与水利引用本文复制引用
段文龙,仓博..万家寨、龙口水库2022年联合排沙调度效果分析[J].人民黄河,2025,47(11):50-54,78,6.基金项目
国家重点研发计划项目(2023YFC3208603) （2023YFC3208603）
