一、引言在海滨条件下,波浪是一个重要的动力因素。为研究波浪在浅水区的传递过程中的沿程衰减,需分析波浪在浅水区传递过程中的能量损耗,这就与波浪作用下的床面剪应力的正确决定息息相关。在研究近岸区底沙运动的过程中,作为其中的二个重要题目,是波浪作用下 I. INTRODUCTION Waves are an important dynamic factor under waterfront conditions. In order to study the attenuation along the waves in the shallow water area, it is necessary to analyze the energy loss of the waves in the shallow water area, which is closely related to the correct decision of the bed shear stress under wave action. In studying the process of sediment movement in the coastal zone, as one of the two important topics, it is under the action of waves