我国有些地区偏居北纬或海拔高,冬季长达数月甚至半年,有轻重不同的积雪、吹雪现象,严重者还有雪滑、雪崩,这些雪害威胁着公路的畅通。为了减轻甚至消除这种病害,个人认为根本的途径是在勘测中正确选定路线方案,在设计中提出有效措施,这样方可在最大程度上给养护、营运过程中减少麻烦。一、路线勘察与资料搜集 (一)视察工作。在积雪地区工作,掌握雪害真实面貌是非常重要的事情。而这些地区当下雪时往往是“万里雪飘、千里封冻”的局面,一到暖季却又是一副冰解雪散,唯见卢山真面目的景象。对于路线视察工作,最好安排在积雪后至融雪前,以便详细观察积雪厚度、分布规律、吹雪、雪滑、雪崩现象的有无 In some areas of our country, the latitudes are north latitude or above sea level. In winter it can take months or even half a year. There are snow drifts and snow blows that vary in severity. There are snow drifts and avalanches in severe cases. These snow hazards threaten the smooth flow of roads. In order to reduce or even eliminate this disease, the basic solution is to personally think that the correct route selection will be made in the survey and effective measures will be put forward in the design so as to minimize the problems in maintenance and operation. First, the route survey and data collection (A) inspection. Working in the snow-covered area, to grasp the true nature of snow damage is very important. In these areas, when the snow is often “floating in thousands of miles of snow, thousands of miles of frozen,” the situation is that it is an ice-melting snow in the warm season, which shows the true image of Lushan. For the route inspection work, it is best arranged before snow melting to snow melting in order to observe in detail the snow thickness, distribution, blowing snow, snow sliding, avalanche phenomenon