摘要
海滩侵蚀已经成为全球性的大问题,不仅引起了学术界广泛关注,也引起了民众的普遍关心。当前防护海滩侵蚀最有效的措施为海滩喂养,即人工补沙。本文采用极端高水位、设计高水位和0.00m水位,进行近岸人工沙坝二维断面试验,研究不同水位下人工沙坝以及岸滩的变化,探究不同水位对人工补沙养滩防护效果的影响。试验结果表明:不同水位条件下,水位低时,人工沙坝顶部在形成的沙槽,随着水位升高,沙槽消失;岸滩受到波浪侵蚀区域向岸移动,侵蚀区域面积在扩大,岸滩的淤积区域也向岸移动。本文对所研究内容利用Flow-3D进行了数值模拟研究,其结果与物理试验吻合,可为近海补沙养滩工程提供理论依据。
Beach erosion has become a major global problem,which not only causes Widespread attention from academia,but also causes widespread concern from people.At the present time,the most effective protection measures of beach erosion is beach nourishment,namely artificial sand filling.In this paper,two-dimensional sectional experiment of the offshore artificial sand bar was conducted with three different water levels,which were extreme high water level(2.66m),design high water level(1.35 m)and 0.00 m water level,respectively.This experiment was designed to study the change of artificial sand bar and beach,and explores the effect of beach nourishment protection under the condition of the three different water level.The result shows that:Under the case of different water levels,when water level was low,sand tanks produced on the top of artificial sand bar;with water level increasing,sand tanks disappeared.Erosion areas of beach under the wave action condition were closer to shore and become larger.Deposition areas of beach were closer to shore too.In this paper,Flow-3D was also used to carry out numerical simulation for the research content,which results were consistent with the two-dimensional sectional experiment.The study could provide a theoretical basis for the offshore filling sand beach nourishment project
作者
拾兵
于冬
赵恩金
赵多苍
SHI Bing;YU Dong;ZHAO En-Jin;ZHAO Duo-Cang(College of Engineering,Ocean University of China,Qingdao 266100,China;China Railway Construction Bridge Engineering Bureau Groups Co Ltd,Tianjin 300300,China))
出处
《中国海洋大学学报（自然科学版）》
CAS
CSCD
北大核心
2018年第1期104-110,共7页
Periodical of Ocean University of China
基金
国家自然科学基金项目(51279189)资助~~
关键词
水位
人工沙坝
岸滩
二维断面试验
数值模拟
water level
artificial sand bar
beach
two-dimensional sectional experiment
numerical simulation
