| 尹小玲,张红武,任杰,胡德超.珠江口虎门水域洪季大潮的水沙特点分析[J].水利学报,2009,40(2): |
| 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 |
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| DOI： |
| 中文关键词: 虎门 珠江 洪季 潮汐水流 ADP 泥沙输移 河床演变 |
| 英文关键词: Humen estuary Pearl river flood season tidal current ADP sediment transport fluvial process |
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| 中文摘要: |
| 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。 |
| 英文摘要: |
| The tidal current,suspended sediment concentration and bed load grainsize 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 Lingding Sea.The current of Fuzhou water course will not significantly influence the flow of main channel at Humen，and the suspended load coming from upstream is easy to be transported outwards through the river mouth.But the current tends to scour the northeast corner of Jibaosha reclamation area and the suspended sediment will be deposited in the downstream along the Shanban Island causing potential deposition in the waterway and the vicinity of the port. |
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