长江口北槽浮泥周期性变化初探

蒋国俊; 姚炎明

长江口北槽浮泥周期性变化初探

浙江大学, 港口海岸及近海工程研究所, 浙江, 杭州, 310028

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出版历程
- 收稿日期: 2005-06-28
- 修回日期: 2005-09-29

Periodical changes of mud fluid in the Northern Channel of Changjiang Estuary in China

Institute of Harbor Coastal and Nearshore Engineering, Zhejiang University, Hangzhou 310028, China

摘要

摘要: 根据2000年长江口北槽浮泥的实测资料,分析浮泥厚度和体积等几何尺度随时间的变化,发现长江口北槽浮泥存在日、半月和年际三种周期变化;日周期的变化受潮流动力周期的控制,这是由潮流冲刷浮泥形成的悬沙并再絮凝沉积造成的;半月周期的变化受潮流半月周期变化引起的泥沙供给量的变化控制;年周期的变化主要是由影响细颗粒泥沙絮凝沉积的长江口水温的年度变化所控制,泥沙供给和动力的年周期变化也有一定的影响.
- 浮泥 /
- 周期变化 /
- 控制因素 /
- 长江口北槽
Abstract: On the basis of measured mud fluid data in the Northern Channel of Changjiang Estuary in China,the periodical changes of mudfluid are discussed.It is thought that the mudfluid changes in three kind of periods in the Northern Channel of Changjiang Estuary.It is pointed out that the tidal period is influenced by the tidal velocity change,at which the flood current erodes the mud fluid and results in the mud fluid scale reducing and the slack current makes fine sediments flocculation and deposition and results in the mud fluid scale increasing.The semi-monthly changes of the mud fluid are controlled by the am ount of fine sediments supply.The annual period change of the mud fluid is controlled by the water temperature,which controls the fine sediments flocculation in the Changjiang Estuary.The annual change of sediment supply and the dynamics are also important influencing factors.
- mud fluid /
- periodical changes /
- controlling factors /
- Northern Channel of Changjiang Estuary

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参考文献(22)

INGLIS C C,ALLEN H H.The regime of the Thames Estuary as affected by currents,salinities and river flows[A].Proceedings of the Institution of Civil Engineers:Vol.7[C].London:Thomas Telford Services Ltd,1957.827-879.

WELLERSHAUS S.Turbidity maximum and mud shoaling in the Weser estuary[J].Arch Hydrobiology,1981,92:161-198.

SCHUDEL J.The turbidity maximum in the upper Chesapeake Bay[J].Science,1968,161:1 013-1 015.

张志忠.长江河口浮泥若干特性的初步研究[J].杭州大学学报,1977,1:83-94.

KIRBY R.High concentration suspension (fluid mud) layers in estuaries[A].DRONKERS J,LEUSSEN W V.Physical Processes in Estuaries[M].Berlin:Springer-Verlag,1988.463-487.

周程喜.长江河口浮泥研究简况[J].水运工程,1979,(1):25-27.

徐海根,徐海涛,李九发.长江河口浮泥层"适航水深"初步研究[J].华东师范大学学报,1994,2:91-97.

LEUSSEN W V.Aggregation of particles settling velocity of mud flocs:a review[A].DRONKERS J,LEUSSEN W V.Physical Processes in Estuaries[M].Berlin:Springer-Verlag:1988.348-402.

李九发,何青,徐海根.长江河口浮泥形成机理及变化过程[J].海洋与湖沼,2001,32(3):302-310.

李炎,夏小明,董礼先.椒江河口浮泥的分布和调整[J].海洋学报,1998,20(4):72-82.

任汝述,曾小川.长江口粘性泥沙动水絮凝沉降与浑水流变特性试验报告[J].长江河口综合治理研究,1987,3:247-258.

徐建益,袁建忠.长江口深水航道建设中的浮泥研究及述评[J].泥沙研究,2001,3:74-81.

LI Jiu-fa,ZHANG Chao.Sediment re-suspension and implications for turbidity maximum in the Changjiang River Estuary[J].Marine Geology,1998,148:117-124.

曾守源.北槽挖槽段近期冲淤问题分析[J].上海航道科技,1989,(1):85-93.

张华,阮伟.长江口北槽浮泥初步研究[J].水运工程,2000,323(12):96-102.

张华,阮伟.长江口北槽深水浮泥的研究与应用[J].水运工程,2002,345(10):98-102.

朱雪琪.长江口北槽深水浮泥测试仪器简介[J].水运工程,2002,345(10):103-104.

李九发,何青,向卫华,等.长江河口北槽浮泥消长过程的现场观测[J].长江流域资源与环境,2001,10(5):407-412.

蒋国俊,姚炎明,唐子文.长江口细颗粒泥沙絮凝沉降影响因素分析[J].海洋学报,2002,20(4):51-57.

张志忠,阮文杰,蒋国俊.长江口动水絮凝沉降与拦门沙淤积的关系[J].海洋与湖沼,1995,26(6):632-638.

赵庆英,杨世伦,王海波.长江口南槽季节性冲淤变化及其对河流入海水沙响应关系的初步研究[J].上海地质,2001,(B12):3-6.

张国安,虞志英,何青,等.长江口深水航道治理一期工程前后泥沙运动特性初步分析[J].泥沙研究.2003,(6):31-38.

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