• Title/Summary/Keyword: Sea bed stabilization

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Hydraulic Experiment on the Effects of Beach Erosion Prevention with Flexible Coastal Vegetation (연성 식생모형에 의한 해빈침식방지 특성에 관한 실험적 연구)

  • Lee, Seong-Dae;Park, Jung-Chul;Hong, Chang-Bae
    • Journal of Ocean Engineering and Technology
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    • v.23 no.1
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    • pp.31-37
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    • 2009
  • Coastal vegetation consists of rooted flowering marine plants that provide a variety of ecosystem services to the coastal areas they colonize. The attenuation of currents and waves and sediment stabilization are often listed among these services. From this point of view, artificial seaweed is an effective method of controlling sea bed sediment and stabilization without damaging the landscape or the stability of the coastline. A series of hydraulic experiments were performed in a wave channel with regular and irregular waves to examine the effect of artificial seaweed in relation to scouring and beach erosion prevention. Based on the results of these experiments, the coastal vegetation model is efficient against scouring and beach erosion.

Reduction Effect for Deposition in Navigation Channel with Vegetation Model (식생모형에 의한 항로매몰 저감 특성)

  • Lee, Seong-Dae;Kim, Seong-Deuk;Kim, Ick-Hyun
    • Journal of Navigation and Port Research
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    • v.36 no.8
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    • pp.659-664
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    • 2012
  • Coastal vegetaion consists of rooted flowering marine plants that provide a variety of ecosystem services to the coastal areas they colonize. The attenuation of waves and sediments stabilization are often listed among these services. From this point of view, artificial vegetation model is an effective method of controlling sea bed and stabilization without damaging the landscape or the stability of the coastaline. In this study, numerical and hydraulic physical test for predicting deposition proces of a navigation channel caused by wave action is proposed. In the numerical model, we develop a numerical model for describing the wave attenuation and sediment transport in a navigation channel with a vegetation area. In addition, hydraulic model tests is performed in a navigation channel with irregular waves to examine the effect of vegetation in relation to deposition reduction in navigation channel. A comparison between the results of hydraulic and numerical tests shows resonable agreement.