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Spatial Impulse Wave Generation and Propagation
| 题名： | Spatial Impulse Wave Generation and Propagation |
| 正文语种： | 英文 |
| 作者： | Frederic M. Evers1; Willi H. Hager, F.ASCE2; Robert M. Boes3 |
| 作者单位： | 1Postdoctoral Researcher, Laboratory of Hydraulics Hydrology and Glaciology (VAW), ETH Zurich, Z黵ich CH-8093, Switzerland (corresponding author). 2Emeritus Professor, Laboratory of Hydraulics Hydrology and Glaciology (VAW), ETH Zurich, Z黵ich CH-8093, Switzerland. 3Professor and Director, Laboratory of Hydraulics Hydrology and Glaciology (VAW), ETH Zurich, Z黵ich CH-8093, Switzerland. |
| 关键词： | Impulse wave; Landslide; Physical modeling; Prediction method; Spatial wave propagation |
| 摘要： | Rapid landslides into water bodies may generate massive water waves posing a threat to riparian settlements and infrastructure. These waves are referred to as impulse waves and exhibit tsunami-like characteristics. The generation and, in particular, the spatial propagation of impulse waves were studied in a hydraulic laboratory wave basin. A videometric measurement system was applied to track the water surface displacement. Compared to fixed wave gauges typically applied in previous studies, this technique yields a quasi-continuous representation of the water surface, allowing for a detailed analysis of spatial propagation patterns. In total, 74 experiments with deformable meshpacked slides were conducted, thereby varying the slide impact velocity, slide mass, slide thickness, slide width, slide impact angle, and stillwater depth. Empirically derived prediction equations are presented and discussed for key wave characteristics, including wave amplitudes and celerities. In the context of a preliminary hazard assessment, these equations allow for the estimation of wave magnitudes at prototype scale. |
| 出版年： | 2019 |
| 期刊名称： | Journal of Waterway, Port, Coastal, and Ocean Engineering |
| 卷： | 145 |
| 期： | 3 |
| 页码： | 1-15 |
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