沥青路面结构的耐久性分析

以某高速公路扩建工程先导试验段和主体工程四种路面结构为例，采用力学分析、室内足尺环道试验和室内小型实验等手段，从抗疲劳能力、抗车辙能力和抗水损害能力三方面着手，对四种较厚的沥青路面结构的耐久性进行了分析．分析结果表明，四种结构均符合重载耐久性路面的设计目标：使用15年左右，路面的损坏现象仅发生在沥青层上部4～7cm范围内，故无须对沥青路面进行结构性改建或重建．

Durability Analysis of Asphalt Pavement Structures

An analysis is made of the durability of four pavement structures including both the main engineering and the test roads of extend engineering of a highway from the prospective of fatigue performance,rutting performance and moisture sensitivity on the basis of mechanical analyses,full-scaled circular road testing and laboratory testing.It is concluded that the four asphalt pavement structures can meet the long-term pavement's requirements under heavy loads.Structure rehabilitation is not needed in the first 15 years or so because the damage is only limited to the depth of four to seven centimeters on the top of the pavement.