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

Journal of Mountain Science 2021年第5期18卷 1159-1176页

作者： CAO Ting WANG Ping-yi QIU Zhen-feng REN Jing-xuan Key Laboratory of Hydraulic and Waterway Engineering of Ministry of Education Chongqing Jiaotong UniversityChongqing 400074China Engineering Research Center of Diagnosis Technology and Instruments of Hydro-Construction Chongqing Jiaotong UniversityChongqing 400074China

rocky landslides on river banks can result in the generation of ultra-high waves,which may destroy structures on the opposite *** methods to calculate the pressure on bank slopes under the effect of impulse waves generated by landslides are,however,few and of low ***,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 *** 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 ***,the magnitude,acting point,and distribution of the pressure of the impulse waves generated by the rocky landslide upon the bank slope were *** distribution curve of the impact pressure was similar to that calculated using theСНиПⅡ57-75 formula,and the experimental pulsating pressure value was close to the value calculated using the Subgrade *** 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 *** acting point of the maximum pulsating pressure was found to be located near the still water ***,an empirical formula for calculating the envelope of the maximum pulsating pressure distribution curve was *** formulas can serve as a theoretical basis for the prediction of impulse wave pressure generated owing to landslides on bank slopes.

关键词： rocky landslide Impact pressure Pulsating pressure Wave pressure steepness Distribution curve

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