The Maximum Height and Attenuation of Impulse Waves Generated by Subaerial Landslides

High-speed landslides that flow into reservoirs can cause impulsive water waves. To study the characteristics of the maximum impulse wave’s height and its attenuation, 25 sets of flume experiments were conducted using orthogonal theory and 6 main influencing factors were considered. Taking the impul...

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Main Authors: Baoliang Wang, Lingkan Yao, Haixin Zhao, Cong Zhang
Format: Article
Language:English
Published: Wiley 2018-01-01
Series:Shock and Vibration
Online Access:http://dx.doi.org/10.1155/2018/1456579
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author Baoliang Wang
Lingkan Yao
Haixin Zhao
Cong Zhang
author_facet Baoliang Wang
Lingkan Yao
Haixin Zhao
Cong Zhang
author_sort Baoliang Wang
collection DOAJ
description High-speed landslides that flow into reservoirs can cause impulsive water waves. To study the characteristics of the maximum impulse wave’s height and its attenuation, 25 sets of flume experiments were conducted using orthogonal theory and 6 main influencing factors were considered. Taking the impulse wave heights as the evaluation criteria and analyzing the 6 influencing factors at 5 different levels, the characteristics of the maximum impulse wave’s height and its attenuations were obtained. Then, statistical relationships between the maximum wave height and the controlling factors were proposed. Then, by combining the continuity equation and the hydrodynamic open channel transient flow movement equation, the process of landslide wave height attenuation was studied, and it was found that the attenuation of the wave is consistent with exponential attenuation. Then, combined with the data obtained from the orthogonal experiments, an attenuation equation for the surge was derived. Finally, the proposed equation was validated by applying it to the landslides that took place along the shore of the Zipingpu reservoir, which were triggered by the Wenchuan earthquake, and the results indicate that the calculated results are very close to the observed results.
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institution Kabale University
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publishDate 2018-01-01
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series Shock and Vibration
spelling doaj-art-dc42ac4c56b247498fd7579752d34d5b2025-02-03T05:45:52ZengWileyShock and Vibration1070-96221875-92032018-01-01201810.1155/2018/14565791456579The Maximum Height and Attenuation of Impulse Waves Generated by Subaerial LandslidesBaoliang Wang0Lingkan Yao1Haixin Zhao2Cong Zhang3School of Civil Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, ChinaSchool of Civil Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, ChinaSchool of Civil Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, ChinaSchool of Civil Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, ChinaHigh-speed landslides that flow into reservoirs can cause impulsive water waves. To study the characteristics of the maximum impulse wave’s height and its attenuation, 25 sets of flume experiments were conducted using orthogonal theory and 6 main influencing factors were considered. Taking the impulse wave heights as the evaluation criteria and analyzing the 6 influencing factors at 5 different levels, the characteristics of the maximum impulse wave’s height and its attenuations were obtained. Then, statistical relationships between the maximum wave height and the controlling factors were proposed. Then, by combining the continuity equation and the hydrodynamic open channel transient flow movement equation, the process of landslide wave height attenuation was studied, and it was found that the attenuation of the wave is consistent with exponential attenuation. Then, combined with the data obtained from the orthogonal experiments, an attenuation equation for the surge was derived. Finally, the proposed equation was validated by applying it to the landslides that took place along the shore of the Zipingpu reservoir, which were triggered by the Wenchuan earthquake, and the results indicate that the calculated results are very close to the observed results.http://dx.doi.org/10.1155/2018/1456579
spellingShingle Baoliang Wang
Lingkan Yao
Haixin Zhao
Cong Zhang
The Maximum Height and Attenuation of Impulse Waves Generated by Subaerial Landslides
Shock and Vibration
title The Maximum Height and Attenuation of Impulse Waves Generated by Subaerial Landslides
title_full The Maximum Height and Attenuation of Impulse Waves Generated by Subaerial Landslides
title_fullStr The Maximum Height and Attenuation of Impulse Waves Generated by Subaerial Landslides
title_full_unstemmed The Maximum Height and Attenuation of Impulse Waves Generated by Subaerial Landslides
title_short The Maximum Height and Attenuation of Impulse Waves Generated by Subaerial Landslides
title_sort maximum height and attenuation of impulse waves generated by subaerial landslides
url http://dx.doi.org/10.1155/2018/1456579
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