应力吸收层加铺罩面在公路养护中的应用

The Application of Stress Absorption Layer with Overlay in Highway maintenance

S301线通车运营后,由于重载车辆增加,昼夜温差较大,加之沥青老化,出现温度应力疲劳等原因,路面出现了纵向及横向裂缝、盐胀裂缝、车辙、拥包等病害,大幅降低了行车舒适度。为解决该问题,在进行路面技术状况调查后,实施了应力吸收层加铺罩面措施,施工完成后,路面病害得到大幅改善。

After the opening and operation of S301 line,due to the increase of heavy-duty vehicles,large temperature differences between day and night,as well as aging asphalt,temperature stress fatigue and other reasons,longitudinal and transverse cracks,salt expansion cracks,ruts,bumps and other diseases appeared on the road surface,greatly reducing driving comfort.To solve this problem,after conducting a survey on the technical condition of the road surface,measures were implemented to add a stress absorbing layer and cover the surface.After the construction was completed,the road surface diseases were greatly improved.