枸杞岛防波堤工程数值模拟及泥沙回淤研究  

Numerical simulation of Gouqi island breakwater project and sediment siltation research

作　　者：柯杰[1,2] 陶爱峰[1,3] 李瑞杰[1,2] 宋晓波[1,2] 肖千璐 

机构地区：[1]河海大学海岸灾害及防护教育部重点实验室,南京210098 [2]河海大学环境海洋实验室,南京210098 [3]河海大学港口海岸与近海工程学院,南京210098

出　　处：《水道港口》2015年第2期121-125,共5页Journal of Waterway and Harbor

基　　金：国家科技支撑计划项目(2009BAB47B08);国家自然科学基金(41276017);国家海洋局公益项目(201205005-2)

摘　　要：岛屿附近海域水动力和泥沙运动规律以及工程实施后引起的变化都具有复杂性和独特性。文章通过建立多重嵌套式二维潮流泥沙数学模型,对枸杞岛拟建防波堤工程所引起的潮流场、含沙量场以及海床冲淤变化进行了分析和预测。研究表明,拟建工程没有改变大范围海区的水沙环境,仅会引起岛屿周边水动力的减弱,海床演变以淤积作用为主,淤积强度在0.1~0.3 m/a。The hydrodynamic and sediment transports around island coasts and the changes caused by coastalstructures have their own complexity and uniqueness. On the basis of the multinest two-dimensional mathematicalmodel for tidal currents and sediment transport, the changes of tidal current field, sediment concentration field andthe seabed erosion and deposition caused by the Gouqi breakwaters were analyzed and predicted. Research resultsshow that the hydrodynamic and sediment environment of large area has not been greatly affected after the imple-mentation of the proposed breakwaters, only the hydrodynamic conditions around the island changed obviously, andthe seabed is deposited with a rate of 0.1~0.3 m/a.

关 键 词：防波堤 潮流泥沙 数学模型 冲淤强度 

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]