长江科学院院报2019，Vol.36Issue(12)：1-9,9.DOI:10.11988/ckyyb.20191064
水利枢纽下游河床冲刷与再造过程研究进展
Research Progress of River Bed Scouring and Remaking Process in the Reaches Downstream of Water Conservancy Projects
摘要
Abstract
Under the action of impoundment and regulation of large water conservancy projects, especially reser-voirs, the incoming flow and sediment conditions of the downstream channel change remarkably, which will lead to unbalanced sediment transport in the channel, and induce scouring and remaking of the riverbed. The riverbed scour and remaking process in the downstream channel of water conservancy project is characterized by the coupling of multiple processes ( inclusive of sediment scour, coarsening, exchange and suspended sediment recovery) and the macroscopic morphological changes of multi-scale complex responses ( such as sediment scouring and silting, bed surface morphological changes, longitudinal slope changes, as well as river pattern and river regime adjust-ment) . The related researches in China and abroad are mainly carried out from two aspects, namely, microscopic mechanism and macroscopic law, by means of field measurement data analysis, theoretical research, physical mod-el test and numerical simulation. In this paper the research results of river bed scour and remaking process in the downstream of water conservancy projects in China and abroad are summarized; the research progress of key tech-nologies in physical model test and numerical simulation of river bed scour and remaking are expounded; and the key points for further research and the scientific and technological problems to be solved are presented.关键词
水库下游/河床冲刷/输沙特性/河床再造/动岸模拟技术/恢复饱和系数/研究进展Key words
river channel downstream of reservoir/river bed scouring/sediment transport features/riverbed rema-king/movable bank simulation/recovery saturation coefficient/research progress分类
建筑与水利引用本文复制引用
卢金友,朱勇辉..水利枢纽下游河床冲刷与再造过程研究进展[J].长江科学院院报,2019,36(12):1-9,9.基金项目
国家重点研发计划项目(2016YFC0402300) （2016YFC0402300）
国家自然科学基金重点项目(51339001) （51339001）
三峡水库科学调度关键技术研究项目(SXSN/4385,SXSN/4384) （SXSN/4385,SXSN/4384）
中央级公益性科研院所基本科研业务费项目(CKSF2017041/HL, CKSF2019411/HL) （CKSF2017041/HL, CKSF2019411/HL）
