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本文就计算风浪对直立堤作用总压力的线性理论进行了修正。这种修正在于:(1)风浪对堤作用引起的动压力场采用非线性的伯努利方程;(2)计算风浪作用于直立堤的波总压力时,不同于Крылов等人的方式,我们考虑了堤前海面波动的影响,堤前波面高度分布采用Gram-Charlier分布。 文中以最为普遍的形式给出了风浪对堤作用的总压力期望值和方差的表示式,同时讨论了求最大峰、谷总压力的方法。经用沙子口港和古镇口港实测资料检验,计算结果令人满意。
In this paper, the linear theory of calculating the total pressure acting on vertical dike by wind and wave is revised. This modification consists in: (1) The nonlinear Bernoulli equation is adopted for the dynamic pressure field caused by the wind and waves on the dike; (2) When calculating the total wave pressure of the upright dike by wind and waves, unlike the method of Крылов et al. Considering the influence of the sea surface wave before embankment, the distribution of wave height before the embankment is Gram-Charlier distribution. In the most general form, the expressions of the total pressure expectation and variance of wind pressure on dike are given, and the method of finding the maximum peak pressure and total pressure is discussed. The test data of Shazikou Port and Guzhenkou Port show that the calculation result is satisfactory.