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三峡成库前后长江嘉陵江交汇口水位特征分析
引用本文:李德华.三峡成库前后长江嘉陵江交汇口水位特征分析[J].水运工程,2017(6):144-149.
作者姓名:李德华
作者单位:长江重庆航道工程局,重庆 400011
基金项目:国家自然科学基金委项目(51509027);重庆市自然科学基金项目 (CSTC2015shmszx30024、CSTC2015JCYJA90013 );重庆市教委基金项目(KJ1400319、KJ1400322)
摘    要:长江嘉陵江交汇口水位特征在三峡成库前后发生巨大的变化。在支流入汇和库区回水双重影响下,通过统计分析来研究该河段成库前后的水位特征。研究表明:三峡成库前,两江交汇口受支流入汇的影响呈河口特性;三峡成库后,该河段在消落期和蓄水期受三峡库区回水的影响呈库区特性,而在汛期呈河口特性。

关 键 词:长江嘉陵江  库区回水  支流入汇

Water level characteristics of confluence between Jialing River and the Yangtze River before and after completion of the Three Gorges Reservoir
LI De-hua.Water level characteristics of confluence between Jialing River and the Yangtze River before and after completion of the Three Gorges Reservoir[J].Port & Waterway Engineering,2017(6):144-149.
Authors:LI De-hua
Institution:Changjiang Chongqing Waterway Engineering Bureau,Chongqing 400011,China
Abstract:Water level characteristics change has greatly in the intersection of the Yangtze River and Jialing River before and after the Three Gorges Reservoir.Under the dual influence of inflow and reservoir backwater,this paper uses statistical analysis to study the characteristics of water level before and after the formation of the river.The study shows that the confluence between Jialing River and the Yangtze River is affected by the tributary of the Three Gorges Reservoir,which is estuary characteristics before.The channel segment is affected by the backwater of the Three Gorges Reservoir area to appear reservoir characteristics in the falling and the storage period,but it is estuary characteristics in the flood season.
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