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The Wave Attenuation Effect of Artificial Reef on Coastal Erosion Prevention

  • Crisisonomy
  • Abbr : KRCEM
  • 2016, 12(8), pp.47-53
  • Publisher : Crisis and Emergency Management: Theory and Praxis
  • Research Area : Social Science > Public Policy > Public Policy in general

KIM KYOUNG HO 1 오현식 1

1충북대학교

Accredited

ABSTRACT

Coastal erosion should be recognized as one of considerable social problems as well as environmental concerns. The coastal structures such as jetties, breakwaters and submerged breakwaters (or artificial reef) have been utilized as a measure of beach erosion prevention. In fact, these structures reduce wave energy and protect beach erosion. A lot of submerged breakwaters have been recently constructed in the wave field in Korea. To investigate the effect of the coastal structures on reducing wave energy, we analyzed a correlation between wave transmission coefficient(K), Ursell number, wave steepness, and relative depth. Our experimental models confirm wave energy dissipation effects, showing that the wave attenuation rate of submerged breakwaters was 19.2% for the case of the 3 rows. Also, K could derive an empirical formula represented by the Ursell number.

Citation status

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