一种新型应急型浮式防波堤消浪特性研究

Experimental study on wave-dissipating performance of a new emergent type floating breakwater

通过二维断面物理模型试验,研究了新型应急型浮式防波堤结构在规则波作用下的消浪效果及透射系数随相对水深、波陡及相对宽度等因素的变化规律。结果表明:试验中透射系数在周期较短时(5~8 s)对相对水深、波陡及相对宽度的变化敏感度较高,规律性较强,透射系数随着相对宽度、波陡及相对水深的增大而减小;周期为10 s、12 s和14 s时,相对水深、波陡及相对宽度的变化对透射系数的影响无明显规律。

A new emergent type floating breakwater of pontoon structure was proposed and studied by two-dimensional wave flume physical model experiment under the regular wave action. The relations between the transmission coefficient and relative depth,wave steepness and relative width were studied. The results show that transmission coefficient is high sensitive and regular to relative depth,wave steepness and relative width in the short periods（ 5 - 8 s）,it reduces with relative depth,wave steepness and relative width increasing. The influence is not obvious when the periods are 10 s,12 s and 14 s.