公路穿越山体滑坡区泥石流拦挡导流坝效果数值分析  

A Numerical Simulation Analysis of the Protective Effect of a Blocking Dam on a Highway Through the Debris Flow Area

作　　者：徐飞飞 韩雨缪 

机构地区：[1]曹妃甸临港商务区管理委员会,河北唐山063200 [2]武汉大学土木建筑工程学院,湖北武汉430072

出　　处：《国防交通工程与技术》2018年第2期31-33,共3页Traffic Engineering and Technology for National Defence

摘　　要：我国山地面积占全国总面积比例较大,公路在山体中穿行,很容易遭受山体滑坡泥石流的侵害。以某公路穿越陕西省古滑坡体为工程背景,利用实际地形资料建立泥石流演进和拦挡导流坝三维数值模型,对泥石流在不同拦挡措施下的运动进行了数值模拟,得到滑坡泥石流的淹没范围、淹没厚度和演进流速。通过对泥石流数据进行分析,验证了拦挡导流坝对泥石流的防控效果。Mountainous districts account for a relatively large proportion of the total area of China. Going through mountain bodies,highways are very vulnerable to landslides or debris flow. With a certain highway through the ancient landslide mass of Shanxi Province as the engineering background,the actual terrain data are used to establish a three-dimensional numerical model for the evolution of debris flows and a blocking dam, with the help of which the movement of the debris flows under different blocking conditions when different measures are taken is numerically simulated,upon the basis of which the flooding range,the submerged thickness and the velocity of the landslide are obtained. Through the analysis of the data of debris flows,the protec-tive effect of the blocking dam on the highway is testified.

关 键 词：公路 泥石流 数值模拟 防护措施 拦挡导流坝 

分 类 号：U416.165[交通运输工程—道路与铁道工程]