CAJ | 학술논문

　　透空结构具有降低海浪作用的功效。该文基于椭圆余弦波一阶分量的浅水波理论和Biot渗流固结理论，分别推导了浅水区固立于可渗透弹性海床上透空圆环墩柱的绕射波浪压力以及由波浪所致海床内渗流压力的数学解，并据此对墩柱所受绕射波浪力与力矩以及渗流浮托力与倾覆力矩进行了实算。结果表明，海况条件和结构参数的变化对波浪所引起的各种载荷存在不同的影响效应，波浪渗流力与波浪直接作用可能具有相同量级。圆环柱外表面的可渗透性对浅水波的直接波浪作用具有明显的减弱效应，而对渗流倾覆力矩也具有一定的减弱效应。此外，圆环墩柱内外柱半径比存在优化取值，以使墩柱达到减载和稳定的双重效果。与Airy波浪理论计算结果相比，浅水波理论的结果能有效反映水波非线性因素的可能影响。
　　투공결구구유강저해랑작용적공효。해문기우타원여현파일계분량적천수파이론화Biot삼류고결이론，분별추도료천수구고립우가삼투탄성해상상투공원배돈주적요사파랑압력이급유파랑소치해상내삼류압력적수학해，병거차대돈주소수요사파랑력여력구이급삼류부탁력여경복력구진행료실산。결과표명，해황조건화결구삼수적변화대파랑소인기적각충재하존재불동적영향효응，파랑삼류력여파랑직접작용가능구유상동량급。원배주외표면적가삼투성대천수파적직접파랑작용구유명현적감약효응，이대삼류경복력구야구유일정적감약효응。차외，원배돈주내외주반경비존재우화취치，이사돈주체도감재화은정적쌍중효과。여Airy파랑이론계산결과상비，천수파이론적결과능유효반영수파비선성인소적가능영향。
Porous structures have the property of diminishing wave loads .Based on first order cnoidal wave theory and Biot consolidation theory , the mathematical solutions are derived for shallow water wave diffracted pressure and wave-induced seepage pressure on a porous vertical circular cylinder resting on porous elastic seabed in shallow water , and direct wave force and moment and wave-induced uplift force and overturn moment on the circular cylinder are correspondingly evaluated .The result shows that the variation of ocean condition and structure parameter have different effects on various wave loads , the mag-nitude of wave-induced seepage loads may have same order of horizontal wave loads , and the permeabili-ty of the cylinder surface will lead an obvious reduction in direct wave effects on cylinder and certain reduction in seepage overturn moment on the bottom of cylinder .Furthermore, the suitable choice of the ratio of the cylinder's inside diameter to outside diameter may lead effects of both diminishing wave loads and ensuring stability of circular cylinder .Compared with the results from Airy wave theory , the wave load prediction values from shallow water wave theories can reflect wave nonlinearity effects .