Effect of landslide disintegration on free-surface characteristics of landslide-generated waves

被引：0
|
作者：
Zheng F. [1 ]
Wang P. [1 ]
Li Y. [2 ]
机构：
[1] College of River and Ocean Engineering, Chongqing Jiaotong University, Chongqing
[2] Nanjing Hydraulic Research Institute, Nanjing
来源：
Shuikexue Jinzhan/Advances in Water Science | 2022年 / 33卷 / 05期
关键词：
disintegration process; landslide generated waves; rock landslides; wave attenuation;
D O I：
10.14042/j.cnki.32.1309.2022.05.012
中图分类号：
学科分类号：
摘要：
A rock landslide in channel reservoirs typically undergoes a disintegration process during the rundown on an inclined plane, that is, disintegrating into numerous blocks of different shapes and sizes. In previous studies on landslide-generated waves, landslides were mainly represented by a rigid body or a granular cluster of uniform granulates. However, the effect of landslide disintegration on landslide generated waves has not yet received significant attention. In this study, the effect of the disintegration process of a landslide during rundown on free-surface characteristics of landslide generated waves in a wave basin was preliminarily investigated. The results showed that the maximum wave amplitude and maximum wave height decreased with increasing disintegration index parameter. The leading wave amplitude and wave height attenuation in the landslide axis during wave propagation could be satisfactorily described based on the solitary wave theory. Moreover, the leading wave amplitude and wave height decay behaviours were mainly dependent on the maximum wave amplitude and the maximum wave height, respectively. It was also found that the wave attenuation was higher in a wave basin than in a wave channel. © 2022 China Water Power Press. All rights reserved.
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页码：826 / 834
页数：8
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