An experimental model of an Icelandic-berm breakwater has been set up in the hydraulic laboratory of Tarbiat Modares University using irregular waves. Experimental model tests have been carried out using a wide range of sea-state conditions and geometrical parameters to measure different parameters, such as the eroded area (A_e), the berm recession (Rec) and the depth of the intersection point of initial and reshaped profiles (h_f). A stability formula is proposed to establish the relationship between the damage parameter of the Icelandic-berm breakwater (S_d) and the non-dimensional form of Rec and h_f. The application of the given formula for estimating the berm recession in the phenomenon and practical cases was evaluated employing the Sirevåg berm breakwater. The results of the evaluation highlight the appropriate estimation of berm recession. Moreover, some recommendations are suggested to consider berm parameters, such as the berm width, the berm elevation from still water level and the height of class I stones, as an Icelandic-type berm breakwater design criterion for future engineers. Eventually, taking all the proposed formulae and recommendations into consideration, a design tool for engineers in berm design of berm breakwaters has been provided.

中文翻译：

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关于冰岛型防波堤的护堤设计（案例研究：Sirevåg 护堤防波堤）

Tarbiat Modares大学水力实验室利用不规则波浪建立了冰岛护堤防波堤的实验模型。已经使用各种海况条件和几何参数进行了实验模型测试，以测量不同的参数，例如侵蚀面积 ( A _e )、护堤后退 (Rec) 以及初始和初始交点的深度。重塑型材 ( h _f )。提出了建立冰岛护堤防波堤破坏参数（ S _d）与Rec和h _f的无量纲形式之间关系的稳定性公式. 使用 Sirevåg 护堤防波堤评估了在现象和实际案例中估算护堤衰退的给定公式的应用。评估结果强调了对护堤衰退的适当估计。此外，建议考虑护堤参数，例如护堤宽度、从静水位起的护堤标高和 I 级石块的高度，作为未来工程师的冰岛型护堤防波堤设计标准。最终，考虑到所有提出的公式和建议，为工程师提供了一种设计工具来进行护堤防波堤的设计。