不同层间接触条件下半刚性路面结构疲劳特性分析研究

Research on The Fatigue Property of Semi-rigid Base Layer Structure Under Different Contact Conditons Between Layers

对半刚性基层沥青路面层间处于完全连续、完全滑动状态条件下的拉应力、剪应力分布进行了分析,同时分析了考虑半滑动半连续状态中不同的滑动系数对沥青层和半刚性层的最大拉应力的影响,并根据我国现行沥青路面设计规范进行了完全连续、完全滑动、半滑动半连续状态下的半刚性基层沥青路面疲劳特性分析。结合湖南省常张高速公路的工程实践,介绍了层间粘接处理的工程经验。

The thesis analyze the distributing of tensile stress and shearing force when the layers of semi-rigid base bituminous pavement are in completed integrate and in completed slip condition. Secondly, it analyzes the effect to the max tensile stress in the bituminous layer and the semi-rigid layer if use different slip coefficients in semi-slip and integrate condition. Thirdly, it analyze the Fatigue characteristics of bituminous pavement in completed integrate, completed slip, in semi-slip and integrate condition under the currently design criterions of bituminous pavement. Finally, it introduces the engineering experience on layers cementing by the practical project in the freeway from HuNan ChangDe to ZhangJiaJie.