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Analysis of riverbed evolution of Chengtong reach at Yangtze Estuary
Author(s): 
Pages: 106-111,116
Year: Issue:  12
Journal: Port & Waterway Engineering

Keyword:  澄通河段河势演变-12.5m深槽河槽容积;
Abstract: 根据1977-2006年间长江口澄通河段实测水下地形资料,从纵向变化、横向变化以及冲淤变化3个方面分析了澄通河段近期河势演变的特征并探讨了其对-12.5 m深槽变化的影响.分析表明:澄通河段内众多沙洲变化较为频繁,其中福姜沙、如皋沙群以及通州沙平面位置的摆动以及狼山沙沙体的不断向西移动对部分河段-12.5 m深槽的稳定和贯通带来了一些不利影响;另外,受上游来沙量减少的影响,整个河段的河槽容积有增大...
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