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Regular Waves-induced Seabed Dynamic Responses around Submerged Breakwater
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 Title & Authors
Regular Waves-induced Seabed Dynamic Responses around Submerged Breakwater
Lee, Kwang-Ho; Ryu, Heung-Won; Kim, Dong-Wook; Kim, Do-Sam; Kim, Tae-Hyung;
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 Abstract
In case of the seabed around and under gravity structures such as submerged breakwater is exposed to a large wave action long period, the excess pore pressure will be generated significantly due to pore volume change associated with rearrangement soil grains. This effect will lead a seabed liquefaction around and under structures as a result from decrease in the effective stress. Under the seabed liquefaction occurred and developed, the possibility of structure failure will be increased eventually. In this study, to evaluate the liquefaction potential on the seabed quantitatively, numerical analysis was conducted using the expanded 2-dimensional numerical wave tank model and the finite element elasto-plastic model. Under the condition of the regular wave field, the time and spatial series of the deformation of submerged breakwater, the pore water pressure (oscillatory and residual components) and pore water pressure ratio in the seabed were estimated.
 Keywords
submerged breakwater;regular waves;pore water pressure(oscillatory and residual components);pore water pressure ratio;liquefaction;
 Language
Korean
 Cited by
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한국해안해양공학회논문집, 2016. vol.28. 4, pp.177-190 crossref(new window)
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콘크리트매트 피복을 이용한 잠제하 해저지반에서의 액상화 대책공법에 관한 수치해석(규칙파 조건),이광호;류흥원;김동욱;김도삼;김태형;

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Irregular Waves-Induced Seabed Dynamic Responses around Submerged Breakwater, Journal of Korean Society of Coastal and Ocean Engineers, 2016, 28, 4, 177  crossref(new windwow)
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Experimental Investigation on In-Situ Capping Erosion by Waves, Journal of the Korean Geoenvironmental Society, 2016, 17, 10, 33  crossref(new windwow)
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Numerical Analysis on Liquefaction Countermeasure of Seabed under Submerged Breakwater using Concrete Mat Cover (for Regular Waves), Journal of Korean Society of Coastal and Ocean Engineers, 2016, 28, 6, 361  crossref(new windwow)
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