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重载或超载作用是影响沥青混凝土路面车辙的关键因素之一。通过对广东省5条具代表性高速公路的货车轴载调查,得出了该地区不同轴载类型的轴载谱及轮胎接地压强谱。结合调查结果,针对广东沥青混凝土路面车辙病害形式,对重载作用下沥青混凝土面层结构内不同位置、不同深度处的剪应力和压应力进行了理论计算分析,探讨了超载对沥青混凝土路面结构应力分布规律的影响。这为重载交通作用下沥青混凝土路面车辙病害成因分析,以及路面结构和材料设计提供了重要的参考依据。
Overloading or overloading is one of the key factors affecting the rutting of asphalt concrete pavement. Based on the survey of five major expressways in Guangdong Province, the axle load spectrum and tire pressure spectrum of different types of axle load are obtained. According to the survey results, according to the form of rutting disease of asphalt concrete pavement in Guangdong, theoretical calculation and analysis of shear stress and compressive stress at different positions and depths of asphalt concrete pavement under heavy load are carried out. The effects of overloading on asphalt concrete pavement structure Influence of stress distribution law. This provides an important reference for the analysis of rutting causes of asphalt concrete pavement under heavy traffic as well as pavement structure and material design.