浙江苍南海域水文泥沙环境及冲淤演变分析

通过现场大量实测水文泥沙及地形资料,对浙江苍南海域的水动力条件及泥沙环境进行了研究。研究结果表明,该海域潮汐动力强、受台风影响频繁,工程临近大片河口浅滩,水体含沙量较高。因此,应尽量减小防波堤内港池的无用水域面积,以减少进港的纳潮水体和沙量。另外,为减少台风及风暴引起的骤淤,对航道进行一定的整治是十分必要的。

Analysis on hydrologic sediment and scouring-silting evolution of Cangnan sea area in Zhejiang Province

Based on lots of field measured hydrologic sediment and depth data,the hydrologic conditions and sediment environment of this project sea area were studied.The result shows that the tidal power is strong and the area is frequently influenced by typhoon surges.The project is near the estuarine shoal,and the sediment concentration is higher.Therefore,the useless water area of basin inside the breakwater should be decreased so as to reduce the tidal prism and sediment volume.Moreover,in order to reduce the sudden siltation due to typhoon and storm,some regulation works for channel are very necessary.