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。
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.
出处
《泥沙研究》
CSCD
北大核心
2007年第2期42-48,共7页
Journal of Sediment Research
基金
国家自然科学基金重点项目(50339010)
江苏省重点课题(K11110BY2D)资助
关键词
辐射沙洲
潮流
含沙量
垂线分布
拟合
radial sand ridges
tidal current
suspended sediment concentration
vertical distribution
fitting curves
