不同沥青混合料组成对沥青路面力学性能的影响  

Influence Analysis of Different Asphalt Mixture Composition on Mechanical Properties of Asphalt Pavement

作　　者：焦兴华 刘锋 许新权 张国民 JIAO Xinghua;LIU Feng;XU Xinquan;ZHANG Guomin(Guangdong Nanyue Traffic Renbo Expressway Management Center,Shaoguan 512000,China;Guangdong Hualu Transport Technology Co.Ltd.,Guangzhou 510420,China;Research and Development Center on Road Transport Safety and Emergency Support Technology&Equipment,Ministry of Transport,PRC,Guangzhou 510420,China)

机构地区：[1]广东省南粤交通仁博高速公路管理中心,韶关512000 [2]广东华路交通科技有限公司,广州510420 [3]公路交通安全与应急保障技术及装备交通运输行业研发中心,广州510420

出　　处：《武汉理工大学学报（交通科学与工程版）》2021年第3期558-561,567,共5页Journal of Wuhan University of Technology（Transportation Science & Engineering）

摘　　要：沥青混合料的集料类型和配合比是决定沥青路面结构力学性能的关键因素之一.为了掌握不同沥青混合料组成对沥青路面结构力学性能和疲劳寿命的影响,以广东省仁新高速公路试验段三种路面铺筑方案为例,运用UTM-130多功能沥青混合料测试系统进行三种类型沥青混合料的动态模量试验,以此试验获得不同沥青混合料组成下动态模量的变化规律,进而将不同温度和频率下获得的沥青混合料动态模量运用至所建立的ANSYS有限元模型之中,通过分析得到了不同沥青混合料组成对沥青路面结构的力学响应和疲劳寿命.结果表明:不同的沥青混合料组成会同时对沥青混合料自身的力学性能和沥青路面结构力学行为产生较大影响.The aggregate type and mix proportion of asphalt mixture is one of the key factors that determine the mechanical properties of asphalt pavement structure.In order to master the influence of different asphalt mixture composition on the mechanical properties and fatigue life of asphalt pavement structure,taking three pavement paving schemes in the test section of Renxin Expressway in Guangdong Province as examples,UTM-130 multifunctional asphalt mixture testing system was used to test the dynamic modulus of three types of asphalt mixtures.The change rule of dynamic modulus under different asphalt mixture composition was obtained by experiment,and then the dynamic modulus of asphalt mixture obtained under different temperature and frequency was applied to the established ANSYS finite element model.Through analysis,the mechanical response and fatigue life of asphalt pavement structure with different asphalt mixture compositions were obtained.The analysis results show that different asphalt mixture compositions have great influence on the mechanical properties of asphalt mixture and the mechanical behavior of asphalt pavement structure at the same time.

关 键 词：道路工程 沥青混合料组成 力学性能 动态模量 

分 类 号：U416[交通运输工程—道路与铁道工程]