籍助波浪断面物理模型试验，系统研究了明基床上开孔沉箱在规则波作用下的波浪反射系数与相对基床高度、消浪室相对宽度、相对水深、相对波陡和前墙开孔率等相关影响因素之间的关系，利用多元回归方法，给出了明基床上开孔沉箱反射系数的计算关系式，研究表明消浪室相对宽度bc/L=0.181、相对基床高度hm/L=0.102时明基床开孔沉箱反射系数kr有最小值消浪效果最佳，试验成果对深入探讨开孔沉箱的消浪机理和工程设计及应用具有重要意义。%Through 2⁃D physical model experiment in the wave flume,systematical analysis and study of the reflection coefficient has been done under the effect of regular wave acting on perforated caisson ,which sitting on rubble mound foundation. In this paper,the relationship between the reflection coefficient with the major influenc⁃ing factors,such as the relative foundation height,the relative chamber width,the relative water depth,the wave steepness and the porosity of perforated wall,was discussed. A simplified equation that through least square method (LSM)for calculating the reflection coefficient of perforated caisson sitting on rubble mound foundation and their major factors was proposed. Experimental investigation indicates that reflection coefficient will be the minimum when the relative foundation height is 0.181 and the relative chamber width is 0.102,which is of great significance for engineering design and application.
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