泥沙研究2017，Vol.42Issue(5)：19-24,6.DOI:10.16239/j.cnki.0468-155x.2017.05.004
三峡水库下游河道冲刷粗化研究
Study on scour and armor in the downstream of Three Gorges Reservoir
摘要
Abstract
The Three Gorges Reservoir has intercepted about 75.5％ sediment from upstream and interrupted the relative balance between water and sediment of the original natural river since the Three Gorges Project operated more than 10 years.The downstream river of the Three Gorges Dam was suffered strong erosion,and resulted coarse riverbed significantly.In this paper,erosion and deposition conditions are analyzed according to the measured terrain and riverbed data.Four methods are summarized for scouring and armoring.Based on the measured data from Yichang to Zhicheng reach which has been close to be relative balance,the four methods are verified.Results of the study show that the coarse sand and scour depth of Han's method coincide with the measured data best,objectively reflect the erosion processes in the downstream river of Three Gorges Reservoir.关键词
三峡水库/下游河道/冲刷粗化Key words
Three Gorges Reservoir/Downstream channel/Scour and coarsen分类
建筑与水利引用本文复制引用
耿旭,毛继新,陈绪坚..三峡水库下游河道冲刷粗化研究[J].泥沙研究,2017,42(5):19-24,6.基金项目
国家重点研发计划项目(2016YFC0402308,2016YFC0402104) （2016YFC0402308,2016YFC0402104）
国家科技支撑计划项目(2013BAB12B01 （）
2013BAB12B02) （）
