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对两种抛石防波堤的护面层的几何特性进行了观察研究。第一种是在试验室用天然石块制作的复式边坡防波堤模型。第二种是由四脚椎体堆成的不变坡的海上防波堤。两种形式的横断面经历了一个变化过程后。最后终于形成了复式边坡的稳定剖面。对于护面层的稳定性来讲,最好采用复式边坡。该剖面的一般特性是由截然不同的两种型式之间的几何相似性所表示。
The geometrical characteristics of the surfacing layers of two types of breakwater were studied. The first is a double slope breakwater model made of natural stone in the laboratory. The second is made of four-foot vertebral body made of constant slope of the sea breakwater. Both forms of cross-section experienced a change process. Finally, a stable profile of the compound slope was finally formed. For the stability of the surface layer, it is best to use double slope. The general characteristics of the profile are represented by the geometrical similarity between the two distinct types.