흐름과 진행파에 의한 해저지반 내 잔류간극수압의 해석해 = An Analytical Solution of Flow and Progressive Wave-Induced Residual Pore Water Pressure in Seabed

다국어 초록 (Multilingual Abstract)

This study extended the existing analytical solution proposed by Lee et al. (2015a) which has some errors for prediction of the residual pore water pressure into progressive wave and flow coexisting field. At this time, the variation of incident wave period and wave length should be incorporated to Lee et al.’s analytical solution, which does not consider flow. For the case of infinite thickness, the new analytical solution using Fourier series was compared to the analytical solution using Laplace transformation proposed by Jeng and Seymour (2007). It was verified that the new solution was identical to the Jeng and Seymour’s solution. After verification of the new analytical solution, the residual pore water pressure head was examined closely under various given values of flow velocity’s magnitude and direction and incident wave’s period and seabed thickness. In the proposed each analytical solution, it is able to asymptotic approach to shallow depth with the changes in the soil thickness within finite soil thickness, but not to infinite depth. It is also identified that there exists a discrepancy case between the results obtained from the finite and the infinite seabed thicknesses even on the same soil depth.

참고문헌 (Reference)

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