Zhen-feng Qiu’s research while affiliated with Chongqing Jiaotong University and other places

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Publications (1)


Influence of impulse waves generated by rocky landslides on the pressure exerted on bank slopes
  • Article

May 2021

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22 Reads

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5 Citations

Journal of Mountain Science

Ting Cao

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Ping-yi Wang

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Zhen-feng Qiu

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Jing-xuan Ren

Rocky landslides on river banks can result in the generation of ultra-high waves, which may destroy structures on the opposite bank. Existing methods to calculate the pressure on bank slopes under the effect of impulse waves generated by landslides are, however, few and of low precision. Therefore, in this study, a three-dimensional physical model test was conducted by taking into account factors such as landslide geometry parameters and the bank slope angle. The model test section was generalized on the basis of a certain section of the Three Gorges reservoir area as a prototype, after which the wave parameters and wave pressure acting on the bank slope were measured. Subsequently, the magnitude, acting point, and distribution of the pressure of the impulse waves generated by the rocky landslide upon the bank slope were determined. The distribution curve of the impact pressure was similar to that calculated using the CHиП II 57–75 formula, and the experimental pulsating pressure value was close to the value calculated using the Subgrade formula. Based on the test results, a power function of the relative pulsating pressure steepness with respect to the reciprocal of the wave steepness, relative water depth, and slope ratio was proposed. The acting point of the maximum pulsating pressure was found to be located near the still water level. Finally, an empirical formula for calculating the envelope of the maximum pulsating pressure distribution curve was proposed. These formulas can serve as a theoretical basis for the prediction of impulse wave pressure generated owing to landslides on bank slopes.

Citations (1)


... Wang [28] put forward a multiple regression equation to evaluate the maximum wave amplitude in the generation region by conducting an experiment in a water wave channel model with 1:200 scale based on the topography of the Yangtze River, China. Cao [29,30] considered the section of Wanzhou Jiangnan Tuokou Wharf within Three Gorges Reservoir as the test area to investigate the pressure on bank slopes under the effect of impulse waves generated by landslides. ...

Reference:

Spatial and Temporal Distribution Characteristics of Landslide Surge Based on Large-Scale Physical Modeling Experiment
Influence of impulse waves generated by rocky landslides on the pressure exerted on bank slopes
  • Citing Article
  • May 2021

Journal of Mountain Science