高模量沥青混合料路面力学响应研究

Study on mechanical response of high modulus asphalt mixture

针对路面在标准轴载、超载,常温、高温,有无水平荷载等不同工况,分析研究不同层位的高模量沥青混合料对沥青路面内部剪应力、路表弯沉的力学响应。结果表明,高模量沥青混合料用于上中面层时可以明显消减沥青层内部剪应力及路表弯沉,下面层应用效果不明显。本研究成果可为沥青路面设计提供理论依据。

According to the pavement under different cases, such as the standard axle load, overload, at room temperature and high temperature,with or without load level,mechanical response of asphalt pavement internal shear stress and road surface deflection by different layers of high modulus asphalt mixture is studied. The result shows that the high modulus asphalt mixture can significantly reduce the internal shear stress and road surface deflection of the asphalt layer when it is used in the upper middle layer. Otherwise,the effect when it is used in the bottom layer is not obvious. The results of this paper can provide a theoretical basis for the design of asphalt pavement.