Numerical study of shoreline changes by emergency beach nourishment project at the Middle Beach of Beidaihe, China
Numerical study of shoreline changes by emergency beach nourishment project at the Middle Beach of Beidaihe, China
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DOI：
10.1007/s13131-012-0184-1
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发表时间：
2012-01
影响因子：
1.4
通讯作者：
Yu Zhang;Lulu He;C. Kuang;Yi Pan;J. Gu;Yanxiong Yang;Jia-bo Zhang
中科院分区：
文献类型：
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作者：
Yu Zhang;Lulu He;C. Kuang;Yi Pan;J. Gu;Yanxiong Yang;Jia-bo Zhang
海滩营养是一种常见的沿海管理策略，用于保护海滩免受沿着桑迪海岸线的侵蚀。该方法已成功应用于2008年夏季北戴河西海滩应急工程和2009-2010年西海滩全营养化工程，为本研究奠定了直接基础。首先介绍了中海滩应急工程区的基本情况。对该区域的岸线变化进行了分析，包括对中海滩浴场5个监测剖面的海滩宽度的分析。在此基础上，建立了基于单线理论的数值模型，计算结果与实测岸线吻合较好，表明该模型是合理的，可以用于预测中海滩的岸线变化。在相同的模型和参数下，对该项目的长期运行状况进行了预测，结果表明，在没有后续营养和工程的情况下，该浴场可保持适宜洗浴10 a左右。建议及时对海滩进行滋养，全面实施北戴河中海滩海滩滋养工程。
Beach nourishment is a common coastal management strategy used to protect beach from erosion along the sandy coastlines. This method has been successfully applied to an emergency project at the West Beach of Beidaihe in the summer of 2008 and the full West Beach nourishment project in 2009–2010, which is the direct base of this study. Some basic information about the emergency engineering area at the Middle Beach is firstly described. The shoreline change of this area, including the analysis of beach width in five monitoring profiles in the bathing places of Middle Beach, is then discussed. After that a numerical model based on one-line theory is established and the numerical results agree well with the measured shorelines, which indicates that the model is appropriate and is qualified to predict the shoreline change of the Middle Beach. With the same model and parameters, long-term performance of the project is predicted, and the result shows that without follow-up nourishment and project, the bathing places can remain suitable for bathing for about 10 a. It is suggested to nourish the beach in time and carry out the beach nourishment project for the full Middle Beach in Beidaihe.