人民黄河2024，Vol.46Issue(5)：46-49,4.DOI:10.3969/j.issn.1000-1379.2024.05.007
洪水期小浪底水库排沙影响因素及规律研究
Study on the Influencing Factors and Regularities of Sediment Discharge in Xiaolangdi Reservoir During Flood Period
摘要
Abstract
The sediment discharge of Xiaolangdi Reservoir is mainly concentrated in the pre-flood water and sediment regulation period and flood period.From 2000 to 2022,the accumulated sediment discharge during the pre-flood water and sediment regulation period and flood pe-riod of Xiaolangdi Reservoir were 484 million tons and 2.154 6 billion tons,accounting for 18.3%and 81.5%of the total sediment discharge since the reservoir was put into operation respectively.The research results show that the inflow volume and return flow length are the main factors affecting the sediment discharge effect of Xiaolangdi Reservoir during the pre-flood water and sediment regulation period.The greater the inflow volume is,the shorter the length of backwater and the better the sediment removal effect will be.The relationship between the sedi-ment discharge volume of Xiaolangdi Reservoir during the pre-flood water and sediment regulation period and the influencing factors is ob-tained by using multiple regression.The main influencing factors of sediment discharge of Xiaolangdi Reservoir during the flood period are the dammed water index and the inflow-outflow ratio.Through research,the relationship between the sediment discharge ratio during flood period and the influencing factors have been quantified.关键词
调水调沙/排沙/回水长度/壅水指标/小浪底水库Key words
water and sediment regulation/sediment discharge/return flow length/damming water index/Xiaolangdi Reservoir分类
建筑与水利引用本文复制引用
王婷,王振凡,李珍,马怀宝,贾梦豪..洪水期小浪底水库排沙影响因素及规律研究[J].人民黄河,2024,46(5):46-49,4.基金项目
国家重点研发计划项目(2021YFC3200400) （2021YFC3200400）
黄河水科学研究联合基金项目(U2243241) （U2243241）
河南省自然科学基金项目(222300420495,202300410540) （222300420495,202300410540）
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-2019-13) （HKY-JBYW-2022-06,HKY-JBYW-2019-13）
水利部重大科技项目(SKS-2022088) （SKS-2022088）
