摘要
为研究敷设消浪材料不同构造浮箱的消浪性能,通过物模试验得到规则波作用下不同周期、不同波高、不同锚泊方式及不同结构形式下浮箱的透射系数(Ct)、反射系数(Cr)及波能衰减系数(Cs)。研究结果表明:随着相对堤宽(B/L)的增大,不同构造浮箱的透射系数均逐渐减小,反射系数逐渐增大,波能衰减系数逐渐增大;敷设消浪材料的浮堤相比于单浮箱透射系数减小了0.10左右,而采用方箱-垂直板式构造的浮堤消浪性能相对于单浮箱透射系数减小了0.10~0.15,且敷设消浪材料的浮堤结构在研究的2种波高下,相对堤宽达到0.30时,透射系数可减小到0.25;当浮堤采用张紧式锚泊时,其消浪性能相对于悬链式锚泊浮堤减小了0.10左右,通过对比不同构造浮箱的消浪性能,可为实际工程设计提供参考。
In order to study the wave-dissipating performance of floating boxes with different structures and laid with wave-dissipating material, the transmission coefficient C t, reflection coefficient C r and wave-energy attenuation coefficient C s of the floating boxes with different structures and mooring types are obtained by physical model testing under the action of regular waves with different periods and heights. The results indicate that with the increase of relative breakwater width ( B/L ), the transmission coefficient of the floating boxes with different structures decreases gradually, and their reflection coefficient and wave-energy attenuation coefficient increase gradually. Comparing with a single floating box, the transmission coefficient of floating breakwaters laid with wave-dissipating material decreases by about 0.10, whereas the transmission coefficient of the floating breakwater with a square box-vertical plate structure decreases by 0.10 ~0.15. In the case that the relative breakwater width reaches to 0.30, the transmission coefficient of the floating breakwaters laid with wave-dissipating material decreases to about 0.25 at the two wave heights studied. When tensional mooring is adopted, the wave-dissipating performance of the floating breakwaters decreases by about 0.10 compared with that of the floating breakwaters applying suspended chain mooring. By comparing the wave-dissipating performance of the floating boxes with different structures, references can be provided for the design of practical engineering.
作者
于定勇
谢雨嘉
黄东燕
赵建豪
YU Ding-yong;XIE Yu-jia;HUANG Dong-yan;ZHAO Jian-hao(College of Engineering, Ocean University of China , Qingdao 266100, China)
出处
《海岸工程》
2019年第3期187-193,共7页
Coastal Engineering
基金
国家自然科学基金项目——桩基环保型防波堤的基础理论与设计方法(51739010)
关键词
浮箱
物模试验
消浪性能
透射系数
反射系数
floating box
physical model test
wave-dissipating performance
transmission coefficient
reflection coefficient
