| 辐射沙洲东大港潮流水道悬沙输移机制分析 |
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| 引用本文： | 吴德安,张忍顺,严以新,李瑞杰. 辐射沙洲东大港潮流水道悬沙输移机制分析[J]. 河海大学学报(自然科学版), 2006, 34(2): 216-222 |
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| 作者姓名： | 吴德安 张忍顺 严以新 李瑞杰 |
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| 作者单位： | 河海大学交通学院、海洋学院,江苏,南京,210098;河海大学水文水资源与水利工程科学国家重点实验室,江苏,南京,210098;南京师范大学海洋及滩涂研究所,江苏,南京,210097 |
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| 基金项目： | 国家自然科学基金;中国科学院资助项目 |
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| 摘 要： | 以东大港潮流水道4号站位的水、沙实测资料为例,利用悬沙通量机制分解法、功率谱分析法,对东大港潮流水道悬沙输移的动力机制进行分析探讨.结果表明,悬沙净输移以平流作用占优,“潮泵效应”项在悬沙输移中也相当重要;潮流流速是水体含沙量变化及悬沙输移的主要动力因素.
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| 关 键 词： | 辐射沙洲 潮流水道 机制分解 谱分析 |
| 文章编号： | 1000-1980（2006）02-0216-07 |
| 收稿时间： | 2005-03-28 |
| 修稿时间： | 2005-03-28 |
Mechanism of suspended sediment transport in Dongdagang tidal channel of radial sand ridges |
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| WU De-an,ZHANG Ren-shun,YAN Yi-xin,LI Rui-jie. Mechanism of suspended sediment transport in Dongdagang tidal channel of radial sand ridges[J]. Journal of Hohai University (Natural Sciences ), 2006, 34(2): 216-222 |
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| Authors: | WU De-an ZHANG Ren-shun YAN Yi-xin LI Rui-jie |
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| Affiliation: | 1. College of Traffic, College of Ocean, Hohai University, Nanjing 210098, China ; 2. State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Hohai Unitersity ,Nanjing 210098, China ; 3. Ocean and Mndflat Institute, Nanfing Normal Universe, Nanjing 210097, China |
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| Abstract: | Based on water and sediment data for station No.4 of Dongdagang tidal channel,a discussion was made on the mechanism of suspended sediment transport in the channel by use of the mechanism decomposition method and spectral analysis method.The result shows that the advection is the main factor to affect the suspended sediment transport,and the tidal pumping effect also plays an important role.Meanwhile,the current velocity is an important dynamic factor on variation of sediment concentration in water body and suspended sediment transport. |
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| Keywords: | radial sand ridge tidal channel mechanism decomposition spectral analysis |
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