沿岸输沙对几内亚湾某港的冲淤影响分析

Impact of Coastal Sediment Transport on Sediment Scouring and Silting of a Port in Gulf of Guinea

几内亚湾内某港项目位于加纳南部阿克拉沿海的沙质海岸,南面大西洋,水域开阔,沿岸海流弱,近岸以周期较长的偏S向涌浪作用为主。单一的流向和单一的波向组合造成了工程附近海域单一的沿岸波流动力。通过对自然条件分析、数学模型计算,对工程海域以及港口工程泥沙冲淤防护等分析研究,为渔港工程设计提供技术支撑。

A port project located in Gulf of Guinea is built on a sandy coast adjacent to Accra in the south of Ghana.The port is in the north of Atlantic Ocean,characterized with open waters and weak current.Long period S-direction swell prevails near shore.Single direction of current and wave result in single force that produces wave and current around the project site.Through the analysis of natural conditions and the numerical simulation,the sediment scouring,silting and preventive measures involving the project waters and port are studied,which will provide technical support for the design of fishing port.