浅谈冻土对路基的危害及防治

在国家西部大开发和持续发展的大背景下,冻土地区国土资源的开发利用得到多方关注.为了解冻土区域路基冻害的形成与危害,就冻土的冻害机理与影响因素作了详尽地分析,结果表明：气温、土中含水量、地下水位高度以及土的类别是冻土形成的影响因素.针对冰冻形成原因,提出增加路基高度、采用浅色路面材料、安装热棒等多种冻害防治方案,为保证路基完整,增强行车安全提供保障.

Introduce to Danger and Prevention of Frozen Earth to Subgrade

At the background of national west regions and sustainable development, the usage of territorial resources in frozen earth has already got more attention. In order to study the formation and dangers of subgrade freeze injury in frozen area, the mechanism and impact factors for frozen earth are got detailed research in this article. The results show that the temperature, soil~ water content, underground water level and the soil~ category are the influence factors for the frozen earth ~s formation. As for these factors, the measures of thickening the subgrade, using the light color materials for road surface, installing the hot stick, etc, can be adopted to protect the subgrade and improve the driving safety.