基于分形理论评价沥青路面微观构造  

Valuation of Microscopic Structure of Asphalt Pavement Based on Fractal Theory

作　　者：李智[1] 刘涛[1] 

机构地区：[1]华南理工大学土木与交通学院,广州510641

出　　处：《武汉理工大学学报（交通科学与工程版）》2013年第3期501-504,共4页Journal of Wuhan University of Technology（Transportation Science & Engineering）

基　　金：广东省交通厅重点工程项目(批准号:2009-01-003);华南理工大学中央高校基本科研业务费项目(批准号:2009ZM0099)资助

摘　　要：鉴于路面微观构造对抗滑性能有着重要的影响,选取4种不同材质的石料分别成型试样,借助散射法-激光纹理仪测量各试样在不同磨损状况下的微观构造,运用分形理论的盒子计数法,通过MATLAB编程实现对试样在不同磨损状况下分维数的计算.试验结果表明:花岗岩的分维数水平和耐磨光性能均较优,石灰岩的耐磨光性能差,该评价方法可以准确评价路面的微观纹理复杂程度,并能有效预测路面的长期抗滑性能.As pavement micro-structure has an important influence on skid resistance condition,this paper chooses 4 different road stones and then prepared samples,with scattering-laser texture meter,The microscopic texture of the samples curve was measured in different wear condition,by the fractal dimension of the box theory counting method,the samples curve was fast calculated by use MATLAB programming in different wear condition fractal dimension,The results show that sample A have better fractal dimension results and wear resistance,sample C have less wear resistance.The evaluation method can accurately evaluate the micro-texture of pavement,and the pavement long term skid resistance condition can be predicted effectively.

关 键 词：沥青路面 磨损 分形分维 微观构造 

分 类 号：U416.217[交通运输工程—道路与铁道工程]