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drifting snow
    Study on the Drifting Snow Disaster along Railway and Preventive Treatment
    铁路沿线风吹雪灾害及其防治研究
    The mean value of the maximum wind speed is 14.0 m·s~(-1) in the drifting snow disaster frequently (occurred) region along Jinghe-Yining railway of Xinjiang. The maximum wind speed and the maximum snow cover depth occurred once every 30 years is 20.3 m·s~(-1) and 160 cm respectively. The average precipitation in winter is 153.2 mm.
    新疆精—伊铁路经过的风吹雪灾害多发区最大风速平均值为14 0m·s-1,30年一遇的最大风速与最大积雪深度分别为20 3m·s-1和160cm,平均冬季降水量153 2mm。
    In drifting snow frequently occurred region, the adequate design height for railway embankment is 200-1 500 cm.
    在风吹雪害多发区,铁路路堤设计的适宜高度为200~1500cm。
    In drifting snow frequently occurred region, the main type of drifting snow disaster is drifting snow deposition in cutting and secondly drifting snow deposition on low-fill embankment.
    在风吹雪多发区,铁路风吹雪灾害的主要类型是路堑型风吹雪沉积,其次是低填路堤型风吹雪沉积。
    Drifting snow deposition easily occurs on low embankment, embankment with gentle slope and road surface.
    路堤低、路堤边坡平缓,路面上易发生风吹雪沉积;
    While drifting snow deposition does not likely occur on cutting slope with small angle, deep cutting and the small inclination angle between the cutting strike and the prevailing wind direction is small.
    路堑边坡的角度越小、路堑越深、路堑走向与主导风向的夹角越小,风吹雪沉积越不易发生。
 

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