沿河路基三维数值模拟分析  

Three-dimensional Numerical Simulation Analysis of Subgrade Scouring along the River

作　　者：赵俊刚 全炳欣 郭向红[3] 贺丽丽 ZHAO Jungang;QUAN Bingxin;GUO Xianghong;HE Lili(Shanxi Traffic Construction Engineering Quality Inspection Center(Co.,Ltd.),Taiyuan 030012,China;Shanxi Traffic Planning Survey and Design Institute Co.,Ltd.,Taiyuan 030012,China;Taiyuan University of Technology,Taiyuan 030012,China)

机构地区：[1]山西省交通建设工程质量检测中心(有限公司),山西太原030012 [2]山西省交通规划勘察设计院有限公司,山西太原030012 [3]太原理工大学,山西太原030012

出　　处：《华北水利水电大学学报（自然科学版）》2021年第4期77-82,共6页Journal of North China University of Water Resources and Electric Power：Natural Science Edition

摘　　要：对河道水流水力学特性变化及冲刷特性进行研究,确定沿河公路路基冲刷最大深度,对保障沿河公路安全有重大意义。运用物理模型试验设置河床质,在分析路基冲刷沿程分布特征和流量及弯道角度对路基冲刷影响的基础上,通过模拟临河公路路基冲刷沿程变化,建立沿河公路路基冲刷三维数值模型,采用FLOW-3D对其进行求解,模拟出河道沿程各点冲刷深度。结果表明,水流特性及河道冲刷实测值与模拟值符合度均较高,该方法可为沿河公路路基冲刷深度确定提供理论支持。It is of great significance to study the change of hydraulic characteristics and scouring characteristics of river flow and determine the maximum scouring depth of highway subgrade along the river.Based on the analysis of the distribution characteristics of subgrade scouring along the way and the influence of flow and curve angle on Subgrade scouring,a three-dimensional numerical model of subgrade scouring along the river is established by simulating the change of subgrade scouring along the river.FLOW-3D is used to solve the model,and the scouring depth of each point along the river is simulated.The results show that the water flow characteristics and the measured value of the river scouring are in high agreement with the simulated value.This method can provide theoretical support for the determination of the scouring depth of the highway subgrade along the river.

关 键 词：数值模拟 路基冲刷 三维 沿河路段 

分 类 号：U41[交通运输工程—道路与铁道工程]