柔性路面三层体系的弹塑性分析

Elasto-Plastic Analysis on Three Layers of Flexible Pavement

根据依留申小弹塑性变形理论，研究了结构形式为沥青面层、半刚性基层和土基的三层柔性路面体系。路面各层材料应力应变关系符合幂硬化规律且层间光滑接触。载荷图式为双圆或四圆垂直均布荷载。文中给出了柔性路面的应力及位移解析表达式，并给出了具体算例。

Based on Iiyushin's small elasto-plastic deformation theory, studies and analyes the flexible pavement, the structure which consists of asphalt surface layer, half-stilfbasis layer and soil basis. The stress-strain relations of the materials used in the three layers are assumed as a power function and the contacts between layers are smooth. The loadmodels are double circulars or four circulars vertical well-distributed load. The analysticformulas of stresses and displacements of the flexible pavement are given. Finally a computing example is presented.