泥沙研究2024，Vol.49Issue(3)：62-68,7.DOI:10.16239/j.cnki.0468-155x.2024.03.009
三峡水库典型入库水沙序列对比研究
Comparative study of typical input flow and sediment sequences of the Three Gorges Reservoir
摘要
Abstract
The selection of input flow and sediment sequence runs through every stage from planning to operation of the Three Gorges Reservoir(TGR),which directly determines the reservoir scale,construction period,operation mode and optimal scheduling direction.Based on the measured data of 1961-1970 sequence(60 s sequence),1991-2000 sequence(90 s sequence)and 2011-2020 sequence(10 s sequence),the input flow-sediment characteristics and development trend of above sequences are comparative analyzed.The results show that with the progression of sequences,the polarization of annual water volumes tends to increase,and the dispersion degree of annual sediment volumes tends to decrease.There is no significant difference in the inflow volume in the maximum flood year of each sequence.However,the magnitude of the incoming sediment in the 90 s sequence and 60 s sequence is basically equivalent,and the sediment in 10 s sequence is lower than that in the driest year of 90 s sequence.The sources of incoming water and sediment in 60 s and 10 s sequences are similar,while the proportion of incoming sediment from Jialing River in 90 s sequence is decreased significantly.During the main flood season,the months with a large amount of incoming sediment tend to be concentrated with the proportion of incoming sediment to the whole year tending to increase.关键词
三峡水库/入库水沙/水沙来源/典型序列Key words
Three Gorges Reservoir/incoming flow and sediment/source of flow and sediment/typical se-quence分类
建筑与水利引用本文复制引用
张成潇,赵汗青,任实,吕超楠..三峡水库典型入库水沙序列对比研究[J].泥沙研究,2024,49(3):62-68,7.基金项目
国家重点研发计划项目(2022YFC3203900) （2022YFC3203900）
国家自然科学基金项目(52209083) （52209083）
中国长江三峡集团自主科研项目(WWKY-2021-0033,NBZZ202200375) （WWKY-2021-0033,NBZZ202200375）
