According to the damage of expansive soil on roadbed practical treatment method is presented in order to avoid premature failure of road to ensure driving safety.

• 介绍了膨胀土的成分、分布范围、特征及辨别方法,针对膨胀土对路基的危害性,阐述了膨胀土路基的处理措施,从而避免公路的早期破坏,保证行车安全。