近岸人工沙坝对岸滩养护效果的研究  

Study on the Protective Effect of Off-Shore Artificial Sandbank to Beach

作　　者：朱金龙 拾兵[1] 殷云珠[1] 张靖[1] 

机构地区：[1]中国海洋大学工程学院,山东青岛266100

出　　处：《中国海洋大学学报（自然科学版）》2013年第5期100-106,共7页Periodical of Ocean University of China

基　　金：国家自然科学基金项目(50879084;51279189)资助

摘　　要：以北戴河海滩横断面地形为例,采用平面二维水动力学、波浪、泥沙输运模型的数值计算方法,对不同沙坝位置进行了3种水位的极限波高入射数值试验,获取了坝内外波浪透射系数及稳定后的断面地形,并对波浪的消减及岸滩防护效果进行了分析与对比。结果表明:人工沙坝具有较好的消波效能,并能对岸滩起到较好的养护效果,将为类似侵蚀性海滩的生态修复提供科学依据。To take the cross section of Beidaihe beach for example, we used numerical calculation method of two-dimensional water dynamics, the waves and sediment transport model to carry on the numerical test of the limit wave height at three kinds of water level while the sandbank was in different locations. As a result, the sandbank＇s inside and outside transmission coefficient and stable topographic profile was a- chieved, and the wave consumption and protective effect to beach were analysed and contrasted. The re- sults show that artificial sandbank have a good efficiency to wave consumption, and have better maintenance effect to coastal, which provides scientific basis for ecological restoration of the similar erosion beach.

关 键 词：数值模拟 人工沙坝 透射系数 岸滩防护 

分 类 号：P751[交通运输工程—港口、海岸及近海工程]