摘要
2004年洪季大、中潮期间,用声学多普勒流速剖面仪(ADP)和传统观测方法对珠江口虎门水域水流、悬沙浓度及底质粒度进行了现场多点同步观测。本文基于观测资料,分析总结了该地区水流、泥沙运动特点及河床演变规律。结果表明,虎门口潮汐水流的特点有利于保持伶仃洋交椅湾和东滩的缓慢淤积速度;洪季凫洲水道的水流过程对虎门深槽影响较小,上游来沙易于通过虎门口向外输移,但对鸡抱沙围垦区东北角有冲刷影响,同时对舢板洲一侧有淤积压力。
The tidal current,suspended sediment concentration and bed load grain size at Humen estuary of the Pearl River in spring tide during flood season in 2004 were observed by using ADP and traditional survey instruments.The flow characteristics and sediment transportation as well as the fluvial evolution of the estuary were analyzed based on the observation data.The results show that the tidal flow at the Humen estuary is in favor of the sediment to be slowly deposited at the Jiaoyi Bay and East beach of the Li...
出处
《水利学报》
EI
CSCD
北大核心
2009年第2期166-172,共7页
Journal of Hydraulic Engineering
基金
国家973项目(2002CB412407)
国家自然科学基金项目(50339020)
关键词
虎门
珠江
洪季
潮汐水流
ADP
泥沙输移
河床演变
Humen estuary
Pearl river
flood season
tidal current
ADP
sediment transport
fluvial process
