CAJ | 학술논문

在一定浅水条件下，浅水波浪将以孤立波形态对近岸结构施加作用。文章基于孤立波对圆柱的绕射理论和渗流问题的Biot固结理论，分析了由孤立波所引起的立柱以下弹性海床内波浪渗流压力分布问题，推导了对圆柱绕射孤立波的波浪渗流压力场的数学解式，并据此对压力引起的墩柱底部所受渗流作用进行了实算。结果表明，海况条件和结构的几何条件等因素的变化对孤立波引起的渗流浮托力和倾覆力矩均有一定影响。在一定条件下，圆柱底部所受波浪渗流力与绕射波浪的直接作用可以具有相同量级。
재일정천수조건하，천수파랑장이고립파형태대근안결구시가작용。문장기우고립파대원주적요사이론화삼류문제적Biot고결이론，분석료유고립파소인기적립주이하탄성해상내파랑삼류압력분포문제，추도료대원주요사고립파적파랑삼류압력장적수학해식，병거차대압력인기적돈주저부소수삼류작용진행료실산。결과표명，해황조건화결구적궤하조건등인소적변화대고립파인기적삼류부탁력화경복력구균유일정영향。재일정조건하，원주저부소수파랑삼류력여요사파랑적직접작용가이구유상동량급。
In certain shallow water condition, shallow water wave may emerge in solitary wave form, exerting wave loads on offshore structures. Based on solitary wave diffraction theory and Biot seepage consolidation theory, the problem of solitary wave-induced seepage pressure inside porous elastic seabed is analyzed, the mathematical solution to seepage pressure is deduced, and seepage loads on the bottom of vertical cylinder resting on porous seabed are evaluated. The results show that variations of ocean condition and structure geometry condition may have some influence on solitary wave-induced seepage uplift force and moment, especially on seepage moment. In certain condition, solitary wave-induced seepage loads may have the same order of magnitude as the direct horizontal wave load.