人民长江2018，Vol.49Issue(2)：23-28,68,7.DOI:10.16232/j.cnki.1001-4179.2018.02.006
三峡水库库区沙峰输移特性研究
Research on sediment peak movement characteristics in Three Gorges Reservoir
摘要
Abstract
In recent years,for the dramatical decrease of sediments carried into the Three Gorges Reservoir,the sediment dep-osition has reduced substantially.And the obviously concentration of sediments in typical flood periods provides favorable condi-tions for sediment peak regulation.During flood seasons of 2012 and 2013,sediments peak regulation was successfully implemen-ted and a favorable result in sediments discharge was achieved.The observed data and numerical simulation method were used to systematically analyze the transporting characteristics of sediment peak and the attenuation process.The results show that after op-eration of Three Gorges project,the water level rises and water flows slowly,so it is much longer to transport sediments;the at-tenuation of sediment peak is correlated with the length,discharge and sediment particles of the river reach.The study provides technical support for capturing the perfect timing for sediment peak regulation and formulating a sediment regulation scheme in a more scientific and reasonable way.关键词
沙峰调度/沙峰输移/沙峰衰减/蓄清排浑/三峡库区Key words
sediment peak regulation/sediment peak movement/sediment peak attenuation/store clear and discharge muddy water/Three Gorge Reservoir分类
建筑与水利引用本文复制引用
张地继,董炳江,杨霞,袁晶..三峡水库库区沙峰输移特性研究[J].人民长江,2018,49(2):23-28,68,7.基金项目
国家重点研发计划项目(2016YFC0402301) （2016YFC0402301）
长江水利委员会长江科学院开放研究基金(CKWV2016368KY) （CKWV2016368KY）
