非洲法语区典型粒料基层沥青路面结构力学分析

运用ALIZE软件，对非洲法语区典型柔性粒料基层路面结构在车辆荷载作用下的力学响应及结构受力特征和超标准轴载对结构的影响进行分析。结果表明:总体上各结构层应力集中度高，弯沉盆范围小，容易产生车辙及疲劳裂缝；结构整体模量较低，联轴对结构影响较小；增加沥青层厚度可快速降低基层、底基层以及土基等结构层顶面压应变值，有利于提高抗车辙能力，而提高基层模量可有效降低沥青层底拉应变，进而提高面层的抗疲劳开裂。

Structural Mechanics Analysis of Asphalt Pavement with Typical Granular Base in Francophone Africa

ALIZE software was used to analyze the mechanical response and structural mechanics characteristics of the typical flexible granular base pavement in Francophone Africa under the action of vehicle load as well as the influence of axle load exceeding standard on the structure. The result shows that it has high stress concentration in each structural layer and the deflection plate is small, which is prone to rutting and fatigue cracks. The overall modulus of the structure is low and the coupling has little effect on the structure. Increasing the thickness of the asphalt layer can quickly reduce the compressive strain value of the base layer and the top surface of the soil foundation and other structural layers, which is beneficial to improve the anti-rutting ability, while increasing the modulus of the base layer can effectively reduce the tensile strain at the bottom of the asphalt layer and improve the fatigue cracking resistance of the surface layer.