粉沙质海岸港口布置模式探讨

Discussion on Modes of Harbour Layout for Silty Coast

根据近年来粉沙质海岸的港口工程实践和流场数值模拟结果,分析了粉沙质海岸港口发生淤积的原因,指出了波浪掀沙是港口回淤的主要诱因,沿堤水流运动对航道淤积起着重要作用。为了减小粉沙质海岸航道淤积,推荐了粉沙质海岸修建港口的合理平面型式,即栈桥与双堤环抱式布置,同时讨论了已建港口减淤的合理整治措施。

According to the practical experience and numerical results of flow fields for silty coasts in recent years, siltation in harbours built on the silty coasts are analyzed. It is shown that siltation in harbours is mainly induced by the sediment suspension due to waves, and the currents along the breakwaters play significant roles. For reducing the channel sedimentation, an optimized layout plan for harbours to be built on the silty coasts, the bridge connected wharfs with two surrounding breakwaters, are recommended, and reasonable regulation plans for the harbours already have being constructed are also discussed.