Sand Control Performance of Highway Comprehensive Protection Facilities in Desert Hinterland under Strong Wind Environment

The highway in the hinterland of desert plays a key role in regional development, but the sand damage caused by strong wind poses a serious threat to it. The purpose of this paper is to deeply explore the sand prevention performance of highway comprehensive protection facilities in desert hinterland under strong wind environment, and to provide scientific basis for ensuring highway safety and smoothness. Through theoretical analysis method, with the help of theoretical knowledge such as wind-blown sand motion mechanics and aerodynamics, the comprehensive protection facilities are studied. It is clear that the comprehensive protection facilities are composed of sand fence, sand-fixing grid and shelterbelt, and each part plays a role in sand prevention through different principles, such as sand fence changing airflow and reducing wind speed to intercept sand particles, sand-fixing grid increasing roughness and binding sand particles, and shelterbelt weakening airflow and fixing soil. Through theoretical model analysis, it is concluded that different protective facilities have different contributions to each index, and the effect of sand prevention can be significantly enhanced when they work together. The research results have laid a solid theoretical foundation for optimizing the design and layout of highway comprehensive protection facilities in the hinterland of desert and improving the efficiency of sand prevention.