华东师范大学学报(自然科学版) ›› 2013, Vol. 2013 ›› Issue (4): 91-105.

• 上海国际航运中心 长江口横沙浅滩挖入式港池规划方案研究 专刊 • 上一篇    下一篇

长江口横沙浅滩挖入式港池对流场的影响分析Ⅱ：  对周边流场影响

葛建忠1， 郭文云1， 丁平兴1, 虞志英1， 金 鏐2， 邵荣顺3，李身铎1， 徐海根1   

  1. 1. 华东师范大学 河口海岸学国家重点实验室， 上海 200062；
    2. 交通运输部长江口航道管理局，  上海 200003；
    3. 中交第三航务工程勘察设计有限公司, 上海 200032
  • 收稿日期:2013-04-01 修回日期:2013-07-01 出版日期:2013-07-25 发布日期:2013-07-11

Hydrodynamic influence of proposed excavated-in harbor in the Hengsha Shoal of the Yangtze Estuary Ⅱ: Influence on the current field

GE Jian-zhong1, GUO Wen-yun1, DING Ping-xing1, YU Zhi-ying1, JIN Liu2,SHAO Rong-shun3, LI Shen-duo1, XU Hai-gen1   

  1. 1.State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai 200062, China；
    2. Administration Bureau of Navigation Channels in Yangtze Estuary,Ministry of Transportation,  Shanghai 200003, China；
    3. CCCC Third Harbor Consultants, Shanghai 200032, China
  • Received:2013-04-01 Revised:2013-07-01 Online:2013-07-25 Published:2013-07-11

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摘要： 横沙浅滩挖入式港池规划方案工程空间尺度巨大，必然对邻近的北港，特别是北槽深水航道产生一定程度的影响.本文基于经过检验的无结构三角高分辨率长江口FVCOM模型，对规划方案的不同平面布置进行模拟分析对比.结果表明，从流场整体态势、典型站位的大小潮动力特征可以看出,横沙浅滩挖入式港池南线、北线方案对北港和北槽的水动力特征并没有造成非常显著的变化，总体上呈现较为微弱的影响，而南线方案对北槽外航道影响较北线方案更为明显.两方案都造成北港往复流特征更趋明显.且南线方案横流更为显著.综合分析，北线方案叫南线方案对周边流场影响较小.

关键词: 横沙浅滩, 挖入式港池, 流场模拟, FVCOM

Abstract: The planed excavated-in harbor in the Hengsha Shoal, located in the river mouth of Changjiang Estuary, has large spatial coverage, which certainly would have significant influence on the hydrodynamics around the local and adjacent regions. This paper focuses on the hydrodynamic influences of the new harbor based on a validated high-resolution unstructured-grid FVCOM model. The modeling results of current field and characteristics at some typical locations show that neither the South nor the North Plans would create significant influence on the hydrodynamics in the North Channel and North Passage, while the South Plan shows more obvious impact on the outer shipping channel of the Deep Waterway Project. Both plans indicate the currents in the North Channel show increasing dominant of alternating current, while the South Plan would produce more significant cross-channel current at the outer region of excavated-in harbor.

Key words: Hengsha Shoal, excavated-in harbor, current simulation, FVCOM

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