上海国际航运中心洋山深水港区平面布置方案

依托外海岛礁地形,在强潮流、高含沙量海域通过封堵汊道形成港区陆域,建设大型集装箱深水港区,工程建设的关键技术之一就是如何确定合理的港区平面布置方案。本文主要结合大、小洋山南、北两条岛链所形成的东口窄(宽约1 000 m)而水深深(平均约50 m)、西口宽(宽约7 600 m)而水深浅(平均约11 m)的喇叭型地形特征,以及海域复杂的水文泥沙条件等,通过论证,推荐实施单通道港区平面布置方案,以利于港区水深的维持、流态的平顺、船舶安全航行以及淤积强度的减少。现场监测表明,港区使用水域在流态、淤强等方面的结果与研究结论基本相符。

Layout of Yangshan Deep Water Port of Shanghai International Shipping Center

In order to construct a large container deep water port,a land of port area shall be firstly formed in the sea area with strong tidal current and high sediment content by blocking branch channels and depending on topography of offshore islands and reefs.One of key technologies in the project is how to determine the layout of Yangshan Deep Water Port.In this paper,mainly considering the trumpet topographic characteristics formed by two island chains of Big Yangshan(in the south)and Small Yangshan(in the north),that is the east entrance is narrow(about 1 000 m in width)and water depth(averagely about 50 m),the west entrance is wide(about 7 600 m in width)and water depth(averagely about 11 m),and complicated hydrologic and sediment conditions in sea area etc.and recommending the proposal to execute single channel layout after demonstration.The proposal is useful for maintaining of water depth in port area,smooth of flow pattern,safe navigation of ships and reduction of mud intensity.Site monitoring indicates the results about flow pattern and mud intensity in water area of port are basically consistent with the conclusion of study.