基于预防性养护的季冻区沥青路面病害研究

Research on the Diseases of Asphalt Pavement for the Preventive Maintenance in Seasonally Frozen Area

随着国民经济发展水平的提高,公路上通行的车辆数量和轴重均呈现大幅上升的态势。吉林省属于季冻区,在日益增加的重型车辆与极端气候的共同作用下,沥青路面病害类型丰富、发育速度快,这导致道路的服务水平降低、道路使用者司乘体验满意度下降及交通事故量增加,其结果是道路寿命周期成本增加,社会效益降低。本文以季冻区沥青路面病害调查为依托,对季冻区沥青路面病害按其产生的原因、病害发育程度、病害的几何尺寸及对交通运行影响的程度进行分类分级。在本研究基础上,可以凭道路检测数据评估被检路段的健康状况,准确进行预防性养护设计,提高道路运行效率,降低寿命周期成本。

With the improvement of the economic development,the number of vehicles and axle loads rise sharply.In Jilin Province,which is in seasonally frozen area,both the increasing heavy vehicles and the extreme climate make the diseases of asphalt pavement rich and serious,which lower service level of roads,dissatisfy the users,increase the traffic accidents.And all this will result in the higher life cycle costs and lower social benefits.In this paper,the diseases of the asphalt pavement in the seasonally frozen area according to the cause,the degree of disease developing,the geometric size of the disease and the degree of influence on traffic operation will be studied based on the investigation of diseases in the seasonally frozen area.And,the health status of the road sections can be used to evaluate based on these data,preventive maintenance design will be accurately carried out,road operation efficiency will be improved,and life cycle costs will be reduced.