摘要
为研究砂质河床河口中推移质的造床作用,以便揭示这类河口独特的地貌发育过程和河床演变规律,需要判别河口泥沙的输移方式并计算推移质数量。本文采用概率论与力学相结合的方法建立了推移质与悬移质的动力学判别准则(5)。同时首次提出一种计算全年推移质数量及逐时输沙率过程的理论方法。并以瓯江河口为示例,说明本方法在研究推移质造床河口的输沙规律方面是行之有效的。
In order to understand the bed-forming rate of bedload in a sand-bed estuary and to reveal the formation causes of estuarine geomorphy and the law of estuarine evolution,criterion judging sediment transport mode and computation of bed load quantity are needed.In this paper,a dynamic criterion,**********w/u*=0.74 has been developed on the basis of mechanics and probability theory combined.An original theoretical aporoach has been proposed to calculate annual quantity of bedload and bedload transport rate hour by hour.The methods are effective,illustrated by the case of the estuary of the Oujiang River.
出处
《海洋通报》
CAS
CSCD
北大核心
1991年第6期48-54,共7页
Marine Science Bulletin
