人民长江Issue(14)：5-9,5.
基于ADCP的长江口推移质运动遥测技术研究
Study of bed load measurement with Acoustic Doppler Current Profiler in Yantze River estuary
摘要
Abstract
ADCP was used to measure the bed load transport process in Beigang Channel of Yantze River estuary and the bed load transport status in different stages was studied. The results show that if there is no bed load transport, the measuring error was influenced by suspended load near bed and the movement velocity of bed load in the flow direction is over estimated;if there is partial bed load transport, the apparent velocity of bed load has exponential correlation with mean velocity in vertical;if there is much bed load transport, the apparent velocity of bed load and mean velocity in vertical is in obvious linear correlation, and the error of apparent velocity varies with flow velocity. However, the measurement accuracy is mainly affected by the pulse range and the near-bottom suspended sediment. The formula of bed load transport rate per unit width measured by ADCP is reasona-ble, which can be used to rapidly determine the bed load transport rate in Yantze River estuary.关键词
ADCP/推移质运动视速度/推移质运动状态/推移质输沙率/长江口北港Key words
ADCP/apparent velocity of bed load/bed load transport status/bed load transport rate/Beigong river channel in Yangtze River estuary分类
建筑与水利引用本文复制引用
胡浩,程和琴,杨忠勇,计娜..基于ADCP的长江口推移质运动遥测技术研究[J].人民长江,2014,(14):5-9,5.基金项目
国家自然科学基金项目(4077605) （4077605）
海洋公益性兴业科研专项(20005019-09) （20005019-09）
上海市科学技术委员会科研课题(10dz121600) （10dz121600）
