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논문 기본 정보

자료유형
학술저널
저자정보
허동수 (국립경상대학교) 박종률 (국립재난안전연구원) 이우동 (국립경상대학교)
저널정보
한국해양공학회 한국해양공학회지 한국해양공학회지 제30권 제6호 (통권 제133호)
발행연도
2016.12
수록면
505 - 519 (15page)

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초록· 키워드

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If the seabed is exposed to high waves for a long period, the pore water pressure may be excessive, making the seabed subject to liquefaction. As the water pressure change due to wave action is transmitted to the pore water pressure of the seabed, a phase difference will occur because of the fluid resistance from water permeability. Thus, the effective stress of the seabed will be decreased. If a composite breakwater or other structure with large wave reflection is installed over the seabed, a partial standing wave field is formed, and thus larger wave loading is directly transmitted to the seabed, which considerably influences its stability. To analyze the 3-D dynamic response characteristics of the seabed around a composite breakwater, this study performed a numerical simulation by applying LES-WASS-3D to directly analyze the wave-structure-soil interaction. First, the waveform around the composite breakwater and the pore water pressure in the seabed and rubble mound were compared and verified using the results of existing experiments. In addition, the characteristics of the wave field were analyzed around the composite breakwater, where there was an opening under different incident wave conditions. To analyze the effect of the changed wave field on the 3-D dynamic response of the seabed, the correlation between the wave height distribution and pore water pressure distribution of the seabed was investigated. Finally, the numerical results for the perpendicular phase difference of the pore water pressure were aggregated to understand the characteristics of the 3-D dynamic response of the seabed around the composite breakwater in relation to the water-structure-soil interaction.

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ABSTRACT
1. 서론
2. 수치모델
3. 수치해석결과
4. 결론 및 고찰
References

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UCI(KEPA) : I410-ECN-0101-2017-454-002024114