摘要
针对唐岛湾内清淤工程,开展了唐岛湾整体动床物理模型试验。通过试验资料分析了在SW(西南)向极限波的作用下,波流动力调整以及湾内泥沙冲淤变化。试验表明,当水位高于平均高潮位时,方案一有效波高相对现状平均增大0.3m,方案二有效波高相对现状平均增大0.6m左右;工程区域内各测点的底流速变化基本上都具有周期性和非对称性,变化周期大约为10s,接近SW向入射波的波周期的2倍;方案二的动力环境与冲淤变化程度,好于方案一。试验研究成果可供类似工程应用时参考。
Focusing on the dredging project of Tangdao Bay,the movable bed physical model of Tangdao Bay was is established and used it to carry out two cases tests.The influence of SW direction limiting wave on the dynamic adjustment of current and the sediment change of the bay wasis analyzed.The result showed that when the water level across the average high tide level,the significant wave height increaseds 0.3 min test scheme one and 0.6 min test scheme two.The velocity distribution in the project zone presenteds periodic and non-symmetry basically.The period of change wasis about 10 seconds which is two times incident wave period of SW direction.The dynamic environment and change of scour in test scheme two were are better than those at in test scheme one.This findings provideds a scientific proof for engineering design and technical support for the semi-closed bay.The research results can be referred by the similar projects.
作者
梁金辉
拾兵
LIANG Jinhui;SHI Bing(College of Engineering,Ocean University of China,Qingdao 266100,China)
出处
《海洋湖沼通报》
CSCD
北大核心
2018年第5期11-17,共7页
Transactions of Oceanology and Limnology
关键词
唐岛湾
清淤工程
水动力
冲淤演变
物理模型试验
Tangdao Bay
Dredging works
Hydrodynamic force
Erosion deposition evolution
Physicalmodel test
