双层高模量沥青混凝土路面结构受力特性分析

Analysis on Mechanical Characteristics of Double-layer High Modulus Asphalt Concrete Pavement Structure

为了对双层高模量沥青混凝土路面结构的受力特性进行分析,利用高模量沥青混凝土动态模量作为结构层力学参数,建立了弹性层状体系模型,并利用BISAR3. 0软件对模型受力进行了计算分析,结果表明,在高温重载条件下,0~9cm是双层高模量沥青混凝土路面结构的高应力应变区,2cm处是应变的极值位置,研究成果可以为双层高模量沥青混凝土路面结构的优化设计及永久变形累积规律的分析提供参考。

In order to analyze the mechanical characteristics of double-layer high modulus asphalt concrete pavement structure,the dynamic modulus of high modulus asphalt concrete is used as the mechanical parameter of structural layer,and the elastic layered system model is established,and the stress of the model is calculated and analyzed by BISAR3.0 software.The results show that,under the condition of high temperature and heavy load,0~9cm is the high stress-strain zone of double-layer high modulus asphalt concrete pavement structure,and 2cm is the extreme position of strain.The research results can provide reference for the optimization design of double-layer high modulus asphalt concrete pavement structure and the analysis of the accumulation law of permanent deformation.