A new type of perforated breakwater has been tested combining the advantages of cylindrical geometry with stepped wave energy dissipation. Thus, the new type of caisson implies a significant reduction of maximum wave forces, as well as loads transmitted to the foundation in comparison with conventional vertical breakwater and other types of perforated caissons. Starting from a brief description of the model and test results, this paper describes the development of a methodology for the estimation of maximum wave loads on this type of breakwater, in order to become a generalisable tool for predesign purposes. Construction and installation constraints of this new type of caisson are also assessed. These need to be taken into account in order to keep some advantages from the proposed design, while noting the key factors from a practical point of view.

中文翻译：

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新型穿孔沉箱上的波浪载荷评估

结合圆柱几何形状的优点和阶梯波能量耗散，已经测试了一种新型的带孔防波堤。因此，与传统的垂直防波堤和其他类型的穿孔沉箱相比，新型沉箱意味着最大波浪力的显着降低，以及传递给基础的载荷的显着降低。从对模型和测试结果的简要描述开始，本文描述了估算此类防波堤最大波浪载荷的方法的发展，以便成为用于预设计目的的通用工具。还评估了这种新型沉箱的构造和安装约束。为了从拟议的设计中保留一些优势，同时从实用的角度指出关键因素，必须考虑这些因素。