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本文以江苏北部连云港地区(北起海州湾湾顶,南至废黄河口)同时存在的侵蚀和堆积两种淤泥质岸滩类型为研究对象,对近岸波浪和潮流的作用特征进行了定量的分析,给出了近岸波浪的分布特征,建立了两种岸滩上波浪的衰减模式,得到了波浪和潮流底切力在不同岸滩上的时空分布规律。由此指出在侵蚀型岸段,波浪是岸滩侵蚀的主要动力因子,潮流主要起运移扩散泥沙的作用;在堆积型岸段,潮流则是岸滩塑造的主要动力,波浪作用退居次要地位。
In this paper, the erosion and accumulation of two types of silt banks in Lianyungang area of northern Jiangsu Province (north from Haizhou Bay Bay top and south to the waste Yellow River estuary) are studied to study the characteristics of waves and currents in the coastal area The distribution characteristics of the near-shore waves are given, and the decay patterns of the waves on the two shore banks are established. The spatial and temporal distribution of the under-shear forces on different shorelines is obtained. It is pointed out that in the eroded section, the waves are the main driving force for beach erosion, and the tidal current mainly plays the role of transporting and diffusing the sediment. In the tidal flat section, the tidal current is the main driving force of the beach and the wave action takes the second place To position.