Study on alternatives of sand placement method for beach nourishment project

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• 作者：Kyu-Han Kim (1) kkhkim@kd.ac.kr
  Agnes Y. W. Widayati (1) agnes_youleea@yahoo.com
• 关键词：beach nourishment &#8211 ; sand placement &#8211 ; erosion &#8211 ; deposition &#8211 ; sediment transport &#8211 ; sand size
• 刊名：KSCE Journal of Civil Engineering
• 出版年：2012
• 出版时间：May 2012
• 年：2012
• 卷：16
• 期：4
• 页码：478-485
• 全文大小：971.0 KB
• 参考文献：1. Dean, R. G. (2002). Beach nourishment theory and practice, Advanced Series on Ocean Engineering Vol. 18, World Scientific Publishing Co. Pte. Ltd., New Jersey.
  2. Dibajnia, M. and Watanabe, A. (1996). “A transport rate formula for mixed-size sands.” Proc. 25th Int. Conf. on Coastal Eng., ASCE, pp. 3791–3804.
  3. Green, D. R. and King, S. D. (2003). Coastal and marine geo-information systems: Applying the technology to the environment, Kluwer Academic Publisher, The Netherlands.
  4. National Research Council (1995). Beach nourishment and protection, National Academy of Sciences, Washington, D.C.
  5. Sunamura, T. and Horikawa, K. (1974). Two-dimensional beach transformation due to waves.” Proc. 14th Coastal Eng. Conf., ASCE, pp. 920–938.
• 作者单位：1. Dept. of Civil and Environmental Engineering, Kwandong University, Gangneung, 210-701 Korea
• 刊物类别：Engineering
• 刊物主题：Civil Engineering
  Industrial Pollution Prevention
  Automotive and Aerospace Engineering and Traffic
  Geotechnical Engineering
  
• 出版者：Korean Society of Civil Engineers, co-published with Springer
• ISSN：1976-3808

文摘

The term beach nourishment generally refers to the process of adding sediment to a beach or dune system as an effort to protect the shoreline area due to the development that have interrupted the natural and necessary movement of sediment and have interfered with coastal processes at beaches. Due to the fact that this project is executed using sand, there is a possibility that erosion could occur again. As a result, the nourishment of beaches becomes a continuous and expensive series of protection project. Moreover, the analysis of cross-shore sediment transport is complicated due to the variability of factors contributing to sediment movement. Consequently, advanced researches are needed to improve the effectiveness of beach nourishment program, especially for establishing the alternative method of sand placement to optimize the performance of nourishment project. Laboratory experiments were conducted with the aim of discover more effective nourishment strategy particularly to find the best alternative for sand placement method. Due to the experiment results, beach profile using larger sand in foreshore and small sand in backshore shows no significant differences compared with the profile only using the large sand. Therefore, beach profile using larger sand in foreshore and small sand in backshore can be proposed as an alternative for sand placement in beach nourishment program.