This study attempts to refine a model named the Integrated Formula of Wave Overtopping and Runup Modeling (IFORM) to improve the prediction performance of mean wave overtopping discharge for a broader range of installation conditions. The empirical formula describing the relation between overtopping discharge and maximum runup has been re-examined. A set of piecewise formulas is implemented in the IFORM by optimal reconstruction of coefficients depending on the magnitude of deficit in freeboard. The refined IFORM improves the tendency to underestimate the discharge in the range of relatively high freeboard conditions, while it retains the high performance of the original IFORM in the range where the crest freeboard is relatively low. The refined model's capability for overtopping prediction is validated by comparison with various existing experimental datasets for inclined/vertical seawalls installed at relatively shallow water depth or on land. The prediction accuracy is also examined by comparison with well-known overtopping formulas. Qualitative and quantitative comparisons validate that the current model is able to reproduce the experimental observations over a broad range of overtopping conditions and that the performance of the model proposed in the present study is as good as existing representative models.

这项研究试图完善一个模型，该模型称为“波浪超限和运行模型的集成公式”（IFORM），以在更广泛的安装条件下提高平均波浪超限流量的预测性能。重新检验了描述过顶放电与最大加速之间关系的经验公式。通过根据干舷亏空量的系数的最佳重构，在IFORM中实现了一组分段公式。精制的IFORM改善了在较高干舷条件范围内低估排放量的趋势，同时在波峰干舷相对较低的范围内保留了原始IFORM的高性能。精致的模型” 通过与安装在相对浅水深度或陆地上的倾斜/垂直海堤的各种现有实验数据集进行比较，可以验证其超顶预测的能力。还通过与众所周知的超越公式进行比较来检验预测准确性。定性和定量的比较验证了当前模型能够在广泛的超越条件下重现实验观察结果，并且本研究中提出的模型的性能与现有的代表性模型一样好。