陡坡路段沥青路面的力学响应

Mechanical Response on Steep Sections of Asphalt Pavement

建立不同坡度下的典型沥青路面结构三维有限元模型,能够获得与纵坡、车速相应的路面弯沉、剪应力和层底拉应力的力学响应。计算结果表明:当纵坡增大时,弯沉与层底拉应力的增幅并不十分明显,而剪应力的增幅则比较显著。

It can obtain the longitudinal,road speed corresponding deflection,shear stress and bottom stress layer of the mechanical response to establish typical asphalt pavement structure finite element model under different slopes.The results show deflection and increase in bottom stress level is not very obvious,but the increase of shear stress are more significant with the increase of longitudinal.