人民黄河2025，Vol.47Issue(2)：36-41,6.DOI:10.3969/j.issn.1000-1379.2025.02.006
小浪底水库排沙规律及调控指标
Sediment Discharge Law and Regulation Indicators of the Xiaolangdi Reservoir
摘要
Abstract
The Xiaolangdi Reservoir is a key project for controlling water and sediment of the Yellow River.Studying its sediment discharge law and regulation indicators is of great significance for maintaining effective storage capacity in the long term.Based on the analysis of meas-ured data and the practice of water and sediment regulation,34 sediment discharge processes in the Xiaolangdi Reservoir from 2010 to 2023 were selected,and the reservoir sediment discharge law and its influencing factors were analyzed,in the meantime the regulation indicators which were useful to reducing reservoir silt were proposed.The results show that,during water and sediment regulation in pre-flood season,sediment discharge is mainly caused by flushing of clear water discharged by the Sanmenxia Reservoir.The sediment discharge amount is pos-itively linear correlated with the inflow volume and negatively linear correlated with the storage volume of the Xiaolangdi Reservoir.During water and sediment regulation in flood season,the sediment discharge ratio is negatively correlated with the degree of reservoir damming and the ratio of inflow and outflow flow,which is a power function relationship.The quantitative expressions of sediment discharge amount during water and sediment regulation in pre-flood season and sediment discharge ratio during water and sediment regulation in flood season are estab-lished,and the water level of the reservoir can be reduced and then maintained to 215 m and 223 m respectively during water and sediment regulation in pre-flood and flood season are proposed,in which the annual sediment discharge ratio can reach 125%.关键词
排沙量/排沙比/调水调沙/小浪底水库Key words
sediment discharge amount/sediment discharge ratio/water and sediment regulation/Xiaolangdi Reservoir分类
建筑与水利引用本文复制引用
陈翠霞,赵东晓,王振凡,朱呈浩,崔鑫..小浪底水库排沙规律及调控指标[J].人民黄河,2025,47(2):36-41,6.基金项目
国家重点研发计划项目(2023YFC3208603,2022YFC3080300) （2023YFC3208603,2022YFC3080300）
国家自然科学基金资助项目(U2243237,U22A20237) （U2243237,U22A20237）
水利部重大科技项目(SKS-2022088) （SKS-2022088）
