浙江省混合式海堤堤顶高程计算方法初探

Preliminary Discussion on Computational Method of Elevation on Top of Composite Sea Embankment in Zhejiang Province

该文主要用浙江省海塘技术规定中的方法计算了断面复杂的混合式海堤的波浪爬高以及越浪量,并通过计算波浪爬高和越浪量来确定海堤的堤顶高程;结合实际工程中遇到的断面比较复杂的海堤,用不同方法进行计算,并对得出的结果进行分析比较;最后通过模型试验进行验证。结果表明,对于复杂的混合式断面,现行规范规定的波浪爬高的计算方法不够完善,计算得到的结果往往偏大,而对越浪量的计算也有很大的局限性,最好通过断面波浪模型试验来分析验证。

The article mainly uses the method in Zhejiang Province Dyke Technical Specification to calculate the wave run-up and overtopping rate of the complex section of composite embankment, and to define the elevation at the top of embankment through the calculation of wave run-up and overtopping rate. Combined with the more complex section of embankment met in the practical project, the different methods are used to calculate, and the given results are analyzed and compared, and finally the model experiment is used to proof. The result makes clear that the calculation method of wave run-up stipulated in the current standard is not perfect for the complex composite section. The result given by the calculation is on the large side sometimes, and the calculation of overtopping rate is also greatly limited. It is best to use the sectional wave model to experiment for analysis and demonstration.