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通过对湖南省(湘)潭-邵(阳)高速公路宽域沥青路面破损状况进行跟踪调查,对宽域沥青路段的典型病害类型、特征及其产生原因进行了系统分析和总结,并对宽域沥青路段已采取铣刨加铺、微表处的处治效果进行了跟踪观测。研究结果表明:宽域沥青路段的典型病害类型为裂缝类、坑槽类;导致宽域沥青路段典型病害的主要原因有路面结构类型、环境、交通荷载等;采用铣刨加铺、微表处对湖南省潭邵高速公路宽域沥青路段进行处治的效果并不是很理想,不能有效地防治反射裂缝,使用寿命只有2～3年;考虑典型病害产生机理及已采取处治对策的效果,提出了铣刨加铺与增加应力吸收层的处治对策。
Through the investigation of the damage status of asphalt pavement in wide area of Xiangtan-Shao (Yang) expressway in Hunan Province, the types, characteristics and causes of typical diseases in wide-area asphalt pavement are systematically analyzed and summarized. Domain asphalt section has been taken by milling and surfacing, micro-table at the treatment effect of tracking observations. The results show that the typical types of diseases in wide-area asphalt pavement are cracks and pit types. The main causes of typical diseases in wide-area asphalt pavement are pavement structure type, environment, traffic load and so on. The effect of treating asphalt in wide-area asphalt pavement of Tan-Shao Expressway in Hunan Province is not very satisfactory and can not effectively control reflection cracks, and the service life is only 2-3 years. Considering the mechanism of typical diseases and the effect of treatment measures taken, Treating Countermeasures of Milling and Adding Stress Absorbing Layer.