珠江口虎门水域洪季大潮的水沙特点分析  

Analysis on characteristics of current and sediment movement in Humen estuary of Pearl River during spring tide in flood season

作　　者：尹小玲[1,2] 张红武[1] 任杰[3] 胡德超[1] 

机构地区：[1]清华大学水沙科学与水利水电工程国家重点实验室,北京100084 [2]华南理工大学水利系,广东广州510640 [3]中山大学近岸海洋中心,广东广州510275

出　　处：《水利学报》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)

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...

关 键 词：虎门 珠江 洪季 潮汐水流 ADP 泥沙输移 河床演变 

分 类 号：TV143[水利工程—水力学及河流动力学]