中文摘要：

为探求重载货车不同行车速度下沥青面层水平剪应力动态响应规律，结合半刚性基层路面特点，采用层状体系理论，建立一个ANSYS3-D有限元粘弹性路面结构模型。在施加非均布动荷载情况下进行了非线性求解计算。结果表明，沥青面层内的最大水平剪应力均随行车速度的增加呈先增大后减小的规律，行车速度在20km／h左右时，水平剪应力达到最大，对路面剪切破坏程度最严重．

英文摘要：

To study the changes and dynamic response in asphalt pavement layers at different truck rules of speeds, a the horizontal shear 3-D finite element stress （FEA） visco-elastic road model was established with the layered theory and the ANSYS software. Then, the changes of horizontal shear stress in the asphalt pavement layers were calculated and analyzed under non-uniform distributed dynamic loads. The results showed that the horizontal shear stress firstly increased and then decreased with the speed increasing at different fiction factors. When the velocity was about 20km/h, the horizontal shear stress reached the maximum, and the asphalt pavement suffered the most serious shear damage.