| 江苏辐射沙洲陈家坞槽悬沙变化过程及垂线分布资料分析 |
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| 引用本文： | 吴德安,张忍顺. 江苏辐射沙洲陈家坞槽悬沙变化过程及垂线分布资料分析[J]. 泥沙研究, 2007, 14(2): 42-48 |
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| 作者姓名： | 吴德安 张忍顺 |
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| 作者单位： | 水文水资源与水利工程科学国家重点实验室,江苏,南京,210098;河海大学,交通、海洋学院,江苏,南京,210098 |
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| 基金项目： | 国家自然科学基金;江苏省重点项目 |
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| 摘 要： | 本文对辐射沙洲陈家坞槽14号站位连续2个潮次的水文、泥沙测量资料进行了分析研究,论述了在非恒定流作用下泥沙的悬浮与沉降过程。定量分析了重力作用与紊动作用对含沙量和床面变形率的影响关系。对水体悬沙的垂线分布进行了拟合,给出了对数拟合关系式,并对该关系式进行了讨论和验证,初步明确了陈家坞槽主槽的悬沙垂线分布基本特征。
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| 关 键 词： | 辐射沙洲 潮流 含沙量 垂线分布 拟合 |
| 文章编号： | 0468-155X(2007)02-0042-07 |
| 修稿时间： | 2005-10-24 |
Analysis on the suspended sediment transport and vertical distribution in Chenjiawu tidal channel |
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| WU De-an,ZHANG Ren-shun. Analysis on the suspended sediment transport and vertical distribution in Chenjiawu tidal channel[J]. Journal of Sediment Research, 2007, 14(2): 42-48 |
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| Authors: | WU De-an ZHANG Ren-shun |
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| Affiliation: | 1. State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Nanjing 210098, China; 2. College of Traffic, College of Ocean, Hohai University, Nanjing 210098, China ; 3. The Ocean and Mudflat Institute of Nanjing Normal University 210097, China |
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| Abstract: | Based on the measured data of tidal current and suspended sediment for the two successive tidal periods at No.14 station in the Chenjiawu channel of the radial sand ridges,the characters of tidal current and the rule of suspended sediment movement are firstly studied.The relationships among the current power,trubulence,bed shear stress settling velocity,sediment concentration and channel bed variation are then analyzed.Finally,the expression formula for the vertical distribution of suspended sediment concentration is developed. |
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| Keywords: | radial sand ridges tidal current suspended sediment concentration vertical distribution fitting curves |
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