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风雪流对公路的危害程度,主要取决于风向、风速、雪源和路基断面的型式及规格。这是因为道路走向与风向的夹角及路基断面型式规格决定着流场结构,而流场结构与雪粒堆积部位、形态和数量密切相关。风雪流研究是集地理学、气象学、流体力学、冰雪学、灾害学等为一体的综合理论和应用研究。风雪流成因及类型分析研究是风雪流学科发展到一定阶段的产物,其理论基础是地域分异规律学说,它既要全面反映风雪灾害的自然环境、地域分异、社会背景及其自身变化的规律,又要为拟订改造自然规划和制定防灾、减灾对策与技术措施提供科学依据,而且也是服务于国民经济建设的一项基础研究工作。
The severity of the snow flow to the road mainly depends on the type and specification of wind direction, wind speed, snow source and subgrade section. This is because the angle between the direction of the road and the direction of the wind and the profile of the subgrade pattern determine the structure of the flow field, and the structure of the flow field is closely related to the accumulation of snow grains, shape and quantity. Snow flow study is a set of geography, meteorology, fluid mechanics, snow science, disasters, etc. as one of the comprehensive theory and applied research. The cause and type analysis of wind and snow flow are the product of the development of wind and snow flow to a certain stage. The theoretical basis is the theory of regional differentiation, which not only fully reflects the natural environment, geographical differentiation, social background and its But also provides a scientific basis for formulating plans for the reconstruction of natural resources and making disaster prevention and mitigation measures and technical measures. It also serves as a basic research service for the national economy.