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Optimization model for maximum tsunami amplitude generated by riverfront landslides based on laboratory investigations

机译：基于实验室调查的河岸滑坡产生的最大海啸振幅优化模型

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Riverfront landslides often occupy rivers and cause tsunamis as they move into the water body in a direction perpendicular to the channel axis. The tsunami amplitude is undoubtedly affected by the dimension of landslide and river. This paper presents a study examining the relationship between the maximum tsunami amplitude and the volume ratio, which is defined as a ratio of landslide volume per unit width to the water body volume per unit width. Physical model tests have been conducted for maximum tsunami amplitudes generated by riverfront landslides. The orthogonal experimental design method is used for the determination of the number of required trials. The 49 runs, possessing a level number of 7 and a factor number of 6, are chosen to consider symmetrical distribution of all factors using the orthogonal experimental design method. The Levenberg-Marquardt method is applied to carry out multiple regressions, and the most optimal model is obtained by the determination coefficient, the mean square error and F-statistic. Case studies show that the calculated maximum tsunami amplitudes are 11.7% larger than their actual values on average.
机译：河滨滑坡经常占领河流，并在沿垂直于河道轴线的方向进入水体时引起海啸。海啸的振幅无疑受滑坡和河流规模的影响。本文提出了研究最大海啸振幅与体积比之间关系的研究，该定义为单位宽度的滑坡体积与单位宽度的水体体积之比。已经对由河岸滑坡产生的最大海啸振幅进行了物理模型测试。正交实验设计方法用于确定所需试验的数量。使用正交实验设计方法，选择级别数为7，因子数为6的49个运行，以考虑所有因子的对称分布。应用Levenberg-Marquardt方法进行多元回归，并通过确定系数，均方误差和F统计量获得最佳模型。案例研究表明，计算出的最大海啸振幅平均比其实际值大11.7％。

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