水利水电技术2018，Vol.49Issue(1)：1-6,6.DOI:10.13928/j.cnki.wrahe.2018.01.001
三峡水库和下游河道泥沙模拟与调控技术研究
Study on sediment simulation and regulation techniques for Three Gorges Reservoir and its downstream reach
摘要
Abstract
As the problem of sediment siltation is one of the key technical problems throughout the demonstration,design,construction and operation of the Three Gorges Project,the study on the sediment simulation and regulation techniques for the Three Gorges Reservoir and its downstream reach is carried out in accordance with the new situations,new problems and new demands occurred since the impoundment and operation of the reservoir,from which the main following results are obtained;i.e.the sediment flocculation law of the Three Gorges Reservoir,the bed-load transport and the secondary coarsening mechanism of the riverbed under the condition of clear-water scouring and the response relation between the evolution of the typical downstream shoals of the dam and the flow-sediment regulation of the reservoir are revealed;the mathematical sediment modeling techniques for the reservoir and its downstream reach are improved along with significant increases of the simulating accuracies;the predicting mode for the inflowing sediment is established and a new water-sediment inflow series for the Three Gorges Reservoir is put forward;the regulatory mechanism and evolutionary trend of the river-lake divergence-convergence relationship between the Yangtze River and Dongting Lake as well as Poyang Lake are exposed;the technologies of two types of new waterway regulating structures,namely,permeable groyne head and stepped groyne head are developed;furthermore,the sediment regulation and multi-objective optimal operation scheme for the Three Gorges Reservoir is proposed,from which the operation mode of "storing the clear water and releasing the muddy" is optimized,while the comprehensive benefit of the Three Gorges Project is extended as well,thus the relevant scientific and technical supports are provided for the efficient and safe operation of the Three Gorges Project.关键词
三峡工程/泥沙问题/运行方式/调控技术Key words
Three Gorges Project/sediment problems/operation mode/regulation technique分类
水利科学引用本文复制引用
胡春宏..三峡水库和下游河道泥沙模拟与调控技术研究[J].水利水电技术,2018,49(1):1-6,6.基金项目
“十二五”国家科技支撑计划项目(2012BAB04B02) （2012BAB04B02）
