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中文摘要：
该文提出了双浮箱-双水平板式新型浮式防波堤结构，并对其水动力特性进行了规则波物理模型试验研究。探讨了相对宽度、相对波高和锚链刚度等因素对防波堤消浪性能、运动响应和锚链受力的影响，并与双浮箱结构的试验结果进行了比较分析。研究结果表明：在双浮箱下面安装两层水平板能有效提高防波堤的消浪性能，显著减小防波堤的运动响应；双浮箱-双水平板结构的波浪透射系数较双浮箱结构最多可减小0．4左右；当相对宽度B／L〉0．30时，透射系数可以控制在0．35以下。因此，新型防波提展现出良好的工程应用前景。
英文摘要：
A new type of floating breakwater consisting of two rectangular pontoons and two horizontal plates is proposed in this paper, and an experimental investigation on the hydrodynamic performance of the floating breakwater （i.e., wave attenuation, motion response and mooring force） is carried out for the regular waves. The experimental results illustrate how the hydrodynamic behaviors are affected by several factors, including the relative width of breakwater, the relative wave height and the stiffness of mooring line. In addition, the experimental results of twin pontoon-twin plate floating breakwater are compared with those of twin pontoon floating breakwater. The research results show that the twin pontoon-twin plate floating breakwaterproves more efficient for intercepting waves than the type of twin pontoon structure, and the motion response is decreased obviously by installing two layers of horizontal plates. Compared with twin pontoon structure, the transmission coefficient of the new type of floating breakwater decreases about 0.4 at most, and it is no more than 0.35 when the relative width B/L 〉 0.30. Therefore, the twin pontoon-twin plate floating breakwater indicates a good prospect of engineering application.
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