NUMERICAL SIMULATION FOR INFLUENCE OF SLOPE RATE ON SNOW DISTRIBUTION AROUND THE EMBANKMENT

Road snowdrift disaster is an important disaster type in snow disaster areas, which poses a great threat to transportation. This paper takes the two-dimensional embankment as the research object, and uses Fluent software to simulate the flow field of embankments under different slopes, so that to obtain the wind speed and wall shear velocity around embankment under different slopes. And then the influence of slope on snow distribution around embankment is analyzed according to the mechanism of snow particle motion. The results show that the flow field around the embankment is closely related with the shear velocity of the embankment surface; the gentle upwind slope can reduce the snow around the embankment. It is recommended to build roads on the embankment with a small slope in areas with frequent snowdrift disaster. The research results can provide a reference for the construction of embankment.