长江口潮汐河段挖入式港池回淤研究  

Study on siltation at dig-in basin of tidal reach in the Yangtze Estuary

作　　者：余珍[1] 张玮[1] 任慧 唐磊[1] 

机构地区：[1]河海大学港口海岸与近海工程学院,南京210098 [2]中国港湾工程有限责任公司,北京100027

出　　处：《水道港口》2011年第1期43-47,共5页Journal of Waterway and Harbor

摘　　要：以新通海沙围垦工程挖入式港池为例,针对长江口潮汐河段挖入式港池回淤问题,采用数学模型模拟了港区水流泥沙运动。结合相关河段实际回淤调查,研究了港池内水流条件分布与回淤分布,对港池回淤进行了估算。分析结果表明,港池内淤积分布形态与港池内水流分布规律相似,回淤估算结果与实际工程调查结果相符,可为潮汐河段挖入式港池的回淤预报和减淤措施提供重要参考依据。Taking the dig-in basin of Xintonghaisha reclamation project as an example,aimed at the siltation problem at dig-in basin of tidal reach in the Yangtze Estuary,the tidal flow and sediment transport in the port area were simulated.Combined with the siltation investigation of relevant river reaches,both the flow condition distribution and deposition distribution were studied to further estimate deposition of the basin.The analysis results show that the siltation intensity distribution rules are similar to rules of flow distribution in the basin,and the estimation results of deposition are accorded with field investigation,which provide important reference for siltation prediction and sedimentation reduction measures.

关 键 词：潮汐河段 挖入式港池 泥沙数学模型 水流条件分布 回淤分布 

分 类 号：TV142[水利工程—水力学及河流动力学] O242.1[理学—计算数学]