牧区道路是一种比较特殊的道路形式,易受雪害和沙害的影响。利用有限元的方法分析了风速场在遇到路堤、路堑、半填半挖路基时的变化情况,模拟风雪流和风沙流在遇到不同路基断面形式时的速度场,从而提出合理的路基断面形式。 Pastoral roads are a rather special form of road that is susceptible to snow damage and sand damage. The change of wind speed field in the process of embankment, cutting and semi-filling and half-digging subgrade was analyzed by finite element method. The velocity field of wind-blown snow flow and wind-blown sand flow in the case of different subgrade sections was simulated, Sectional form.