基于有限元的交叉口抗车辙沥青混合料力学性能分析  

Research on mechanical properties of anti-rut asphalt mixture at intersection based on finite ele ment

作　　者：华春丽[1] 丁彬 HUA Chunli;DING Bin(Jiangsu Expressway Operation and Management Center,Nanjing 210017, China;JSTI Group CO.,LTD.,Nanjing 211112, China)

机构地区：[1]江苏省高速公路经营管理中心,江苏南京210017 [2]苏交科集团股份有限公司,江苏南京211112

出　　处：《四川建材》2020年第12期153-155,共3页Sichuan Building Materials

摘　　要：针对交叉口病害调查出现的车辙等病害,为了深入分析病害出现的原因,本文采用有限元数值分析,对不同工况情况下交叉口道路结构层的受力进行分析。针对病害产生的原因从路面结构和材料设计提出解决方案。同时,针对三种抗车辙沥青混合料力学性能进行分析。研究表明:模量和层间粘结状况对路面受力影响较大。30#+PR.M混合料模量最高,抵抗荷载能力最强,其次为50#+PR.M和30#基质沥青。Aiming at the rutting and other diseases in the intersection disease investigation,in order to analyze the causes of the disease in depth,this paper uses finite element numerical analysis to analyze the stress of the road structure layer of the intersection under different working conditions.According to the causes of diseases,solutions are proposed fro m pave ment structure and material design.At the sametime,the mechanical properties of three anti-rut asphalt mixtures are analyzed.Studies have shown that:Modulus and interlayer bonding conditions have a greater i mpact on pave ment forces.30#+PR.M mixture has the highest modulus and the strongest resistance to load,followed by 50#+PR.M and 30#matrix asphalt.

关 键 词：有限元 交叉口 抗车辙 剪应力 拉应力 高模量沥青 

分 类 号：U416.217[交通运输工程—道路与铁道工程]