广西万尾岛金滩沿岸输沙计算与分析
发布时间：2019-02-21 17:39
【摘要】：依据CERC公式,年内代表浪向作用下,广西万尾岛金滩平直岸滩中部泥沙分别向东西两侧净输沙,意味着金滩中部有淘刷趋势而两端有淤积趋势,而实际上岸滩中部滩面长年基本稳定、未有明显侵蚀现象。分析认为公式计算成果反映的输沙特征定性仍然是正确的,岸滩能够维持稳定是因为还存在自海向岸的横向输沙补给沙源。当岸滩并非平直且足够长时,应完整分析纵、横向输沙才能更为合理地反映岸滩泥沙运动特征。
[Abstract]:According to the CERC formula, under the action of wave direction in the year, the sediment in the middle of the flat bank of Wanwei Island, Guangxi Province, is transported to the east and west sides of the plain beach, respectively, which means that there is a trend of scouring in the middle of the Jintan and a tendency to deposit at both ends of the flat. In fact, the beach surface in the middle of the shoreline is stable for a long time, and there is no obvious erosion phenomenon. The analysis shows that the qualitative analysis of sediment transport characteristics reflected by the formula is still correct and the beach can maintain stability because of the existence of transversal sediment transport and recharge sand sources from the seaward shore. When the shoreline is not straight and long enough, the longitudinal and lateral sediment transport should be completely analyzed to reflect the characteristics of shoreline sediment movement more reasonably.
【作者单位】： 南京水利科学研究院港口航道泥沙工程交通行业重点实验室;河海大学港口海岸与近海工程学院;
【分类号】：TV148
本文编号：2427732
[Abstract]:According to the CERC formula, under the action of wave direction in the year, the sediment in the middle of the flat bank of Wanwei Island, Guangxi Province, is transported to the east and west sides of the plain beach, respectively, which means that there is a trend of scouring in the middle of the Jintan and a tendency to deposit at both ends of the flat. In fact, the beach surface in the middle of the shoreline is stable for a long time, and there is no obvious erosion phenomenon. The analysis shows that the qualitative analysis of sediment transport characteristics reflected by the formula is still correct and the beach can maintain stability because of the existence of transversal sediment transport and recharge sand sources from the seaward shore. When the shoreline is not straight and long enough, the longitudinal and lateral sediment transport should be completely analyzed to reflect the characteristics of shoreline sediment movement more reasonably.
【作者单位】： 南京水利科学研究院港口航道泥沙工程交通行业重点实验室;河海大学港口海岸与近海工程学院;
【分类号】：TV148
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