沥青路面病害力学研究进展

为促进沥青路面病害力学的研究发展,通过概括国内外的相关研究工作,阐述路面几种主要病害的力学模型和力学机理。 针对道路条件复杂、超载现象严重的现状,梳理沥青路面永久性变形的研究成果,以及国内外目前主要的车辙预测方法;针对沥青路面在反复荷载作用下出现的断裂损伤,研究沥青材料的开裂及损伤力学模型;针对沥青路面水损坏问题,从微观角度分析水损坏机理,并基于流固耦合动力学探究水对沥青路面的影响;针对车辆反复作用下路面抗滑性能下降的问题,研究了路面磨损机理,以及不同因素对道路抗滑性能衰减的作用。

A review of mechanics of asphalt pavement disease

To promote the development of disease mechanics of asphalt pavement, major mechanical models and mechanisms of pavement disease were elaborated by means of summarizing previous researches. Research results of asphalt pavement permanent deformation and primary prediction techniques of rutting were presented. Against the fracture damage due to repeatedly loads, failure mechanics models of asphalt material were studied. The moisture damage mechanism was analyzed from the micro perspective and the effect of moisture on asphalt pavement was introduced based on fluid-solid coupling dynamics. The traffic-load-induced attenuation of pavement skid-resistant performance was significant, so the wear mechanism and the effects of different factors on skid-resistant were analyzed.