海浪是海洋工程的主要作用力,当它由深水传到浅水以后,由于水深、底摩擦等影响,海浪发生折射,波向线、波动强度都有改变,所以海浪折射的计算对于海洋工程的设计和施工都有很大意义。我国海港水文规范中,关于波浪折射图的绘制是采用由Snell Wave is the main force of ocean engineering. When it is transferred from deep water to shallow water, the waves are refracted, the waves are directed and the intensity of wave changes due to the influence of water depth and bottom friction. Therefore, the calculation of wave refraction is of great importance to the design of ocean engineering And construction are of great significance. In China’s harbor hydrological regulation, the drawing of the wave refraction map is adopted by Snell