路基基床冻害原因分析及整治措施研究

Analysis on Reason of Subgrade Bed Freeze Injury and Research on Regulation Measure

道路工程的冻害,是寒冷气候条件下所特有的现象,因此气候也是影响道路冻害的主要因素之一。重点介绍整治基床冻害的保温措施,现场实验结果表明,采用保温措施能将冬季冻结线控制在保温层内,从而使冻胀性土不产生冻胀,改变了路基土的温度状况。

The freeze injury of road engineering is specific phenomenon under the cold climate condition, therefore, the climate is also one of main factors that affect road freeze injury, the insulation measure of regulating bed freeze injury is introduced, field experimentation result shows that adopt the insulation measure may control the winter frost line within the insulating layer, thus to make frost heave soil fail to produce frost heave, and the temperature condition of subgrade soil is changed.