泥沙研究2017，Vol.42Issue(3)：59-66,8.DOI:10.16239/j.cnki.0468-155x.2017.03.011
北江下游推移质输沙研究
Study on the bed-load transport in the Lower Reaches of Beijiang River
摘要
Abstract
Applicability of bed-load transport formulas,and the amount and distribution of the sediment transport rates in the lower reaches of Beijiang River were studied.Results indicate that formulas based on bottom shear stress are more suitable in study area.The minimum error was found by Bijker formula in flood season and Van Rijn formula in dry season.Bedload transport rates at Shijiao section were calculated,which were 9.06 × 104 tons per month in flood season,2.43 × 104 tons per month in dry season,and 49.54 × 104 tons for the annual bedload discharge in 2002.Bedload transport mainly located in the upper reach of Datang,peaks of the sediment transport rate exist in cross sections at Shantang,Huiqizhou and Jiepai.Bedload transport was weak in the lower reach of Datang.Hydraulic slope is the dominant factor affecting spatial distribution of the bedload transport.关键词
北江下游/推移质输沙/数值模拟/成因分析Key words
lower reach of Beijiang River/bedload transport/modeling/mechanism分类
建筑与水利引用本文复制引用
代春辉,贾良文,韦献革,贾妍红..北江下游推移质输沙研究[J].泥沙研究,2017,42(3):59-66,8.基金项目
国家自然科学基金项目(41376101) （41376101）
国家重点研发计划项目(2016YFC0402603) （2016YFC0402603）
