明基床上开孔沉箱不规则波水平力试验研究

Experimental study of horizontal forces acting on perforated caisson on rubble mound foundation under irregular waves

通过不规则波作用下明基床上开孔沉箱的波浪力物模试验,并综合考虑消浪室相对宽度、相对基床高度、波陡、相对水深、开孔率等影响因素,采用多元回归的方法,拟合给出开孔沉箱所受波浪总垂直力极值时刻对应的总水平力的计算关系式。经对比分析,计算值与试验值吻合良好。

Through the experiments of the interaction between waves and perforated caisson, under the condi-tion of irregular waves with rubble foundation, the relationships between the total horizontal force corresponding themoment of crest（valley） value of total vertical force and main influencing factors including the relative chamberwidth, the relative foundation height, the wave steepness, the relative depth and the porosity of perforated caissonhave been systematically investigated. The empirical formula of these relationships has been presented and the re-sults of empirical and the experimental data show good consistency with each other.