本文基于1987和1988年夏季在古镇口港同步连续观测的波浪、波压力和浮托力资料,分析研究了浮托力的概率特征、浮托力沿堤底面的变化及其谱特征。结果表明,浮托力幅度和周期的累积分布实际上不随测点在堤底面上的位置变化,可用公式表示。浮托力沿堤底面宽度近似呈线性衰减,前趾浮托力最大,后趾不为零,呈梯形状。文中还给出了计算最大峰、谷总浮托力的方法。 Based on the data of wave, wave pressure and floatation force, which are observed continuously and synchronously in the ports of Guzhen in 1987 and 1988, the probabilistic characteristics of the floating force and the variation of the floating force along the bottom of the embankment are analyzed. The results show that the cumulative distribution of the floating force amplitude and period does not actually change with the location of the measuring point on the bottom of the dike, which can be expressed by the formula. Floating force along the bottom width of the liner is approximately linear attenuation, front toe float force maximum, back toe is not zero, was trapezoidal. The article also gives the method of calculating the maximum peak and valley total floating force.