动水条件下三维岩质滑坡涌浪爬高规律研究  

Study on the pattern of surge climbing under the condition of moving water in three-dimensional rock landslides

作　　者：王梅力 田野[2] 王平义[2] 杨胜发[2] WANG Meili;TIAN Ye;WANG Pingyi;YANG Shengfa(College of Architecture and Urban Planning,Chongqing Jiaotong University,Chongqing 400074,China;National Engineering Technology Research Center for Inland Waterway Regulation,Chongqing Jiaotong University,Chongqing 400074,China)

机构地区：[1]重庆交通大学建筑与城市规划学院,重庆400074 [2]重庆交通大学国家内河航道整治工程技术研究中心,重庆400074

出　　处：《水利水运工程学报》2025年第1期111-119,共9页Hydro-Science and Engineering

基　　金：国家自然科学基金资助项目(52009014,52379059);重庆市自然科学基金资助项目(cstc2021jcyj-msxmX0667,CSTB2022NSCQ-MSX1556)。

摘　　要：借助动水条件下弯道浅水区三维散体岩质滑坡涌浪模型试验系统,研究水流动力影响下滑坡涌浪爬高的基本规律和最大爬高的确定方法。根据物理模型试验观测资料,计算得到爬高特征值;分析了水流流速、河道水深、滑坡方量、滑坡倾角对爬高的影响;通过多元非线性回归分析和最小二乘法分析,分别得到动水条件下三维涌浪沿对岸和同岸的爬高衰减公式,并与静水条件下散体岩质滑坡涌浪爬高衰减公式进行对比;采用无量纲及多元回归分析方法,给出动水条件下涌浪最大爬高计算式,并将计算结果与长江新滩滑坡涌浪实测资料进行对比验证,二者较为接近。Utilizing the experimental system for three-dimensional diffuse rock landslide surges in shallow water areas of bends under moving water conditions,this study investigates the fundamental patterns of surge climbing under the influence of hydrodynamic forces and the method to determine the maximum climb.Based on the data observed from the physical model experiments,characteristics values of climbing were calculated.The effects of water flow velocity,river depth,landslide volume,and landslide inclination angle on climbing were analyzed.Through multiple nonlinear regression analysis and least squares method analysis,the climbing attenuation formulas of three-dimensional swells along the opposite and same banks under dynamic water conditions were obtained,and compared with the climbing attenuation formulas of swells in loose rock landslides under static water conditions.Using dimensionless and multivariate regression analysis methods,a formula for calculating the maximum climb height under moving water conditions was given.The calculation results were compared and verified with the actual measurement data of surge climbing in the Xintan landslide on the Yangtze River,and the two results are relatively close.

关 键 词：滑坡涌浪 水流流速 涌浪爬高 最大爬高 

分 类 号：U656.31[交通运输工程—港口、海岸及近海工程]