沥青路面车辙形成机理力学分析

Andyalysis of Rutting Formation Mechanism in Asphalt Concrete Pavement

本文从车辙形成动力和阻抗两方面探讨沥青路面车辙形成机理，根据应力变形力学分析可知，形成车辙的横向剪切变形和密实体积变形的形成都依赖于剪应力强度和平均法向应力．提出了反映沥青混合料自身应力变形力学特性的综合流动动力参数─—Ｋ积分．文末给出了应用简例．

Rutting formation mechanism in asphalt concrete pavemnt was discussed as for the dynamic and resistance of formation rutting.It was pointed out that the shear deformation and volumedeformation formin8 rutting depend on not only the shear stress strength but also static hydraulicforce.The comprehensive dynamic parameter─ Xintegration reflecting the stress-deformationproperties of bitumious mixture was presented.Lastly,an application simple example was given.