路表纹理的分形表征及在抗滑性预估中的应用  

Fractal Characterization of Pavement Texture and Its Application in Skidding Resistance Prediction

作　　者：李波[1,2] 徐鸥明[3] 韩森[1] 

机构地区：[1]长安大学公路学院,西安710064 [2]兰州交通大学土木工程学院,兰州730070 [3]长安大学材料科学与工程学院,西安710064

出　　处：《武汉理工大学学报》2009年第19期102-104,共3页Journal of Wuhan University of Technology

基　　金：西部交通科技建设项目(200731822301-8);长安大学科技发展基金(20008Q03)

摘　　要：利用分形几何插值方法对微观纹理和宏观纹理的4种组合路表构造进行了较为精确的模拟,并建立了路表纹理分维值与摩阻系数的定量关系。结果表明:路表纹理具有明显的分形特征,利用分形插值函数可以对路表纹理进行较为精确的描述;路表纹理越粗糙其分维值越大且二者线性关系显著,利用该关系可对不同路表纹理的抗滑性进行预测。Four special pavement textures composed of micro texture and macro texture were simulated accurately by fractal interpolation functions. On this basis, quantitative relation between the fractal dimension and friction coefficient for pavement texture was established. The results show that pavement texture has an obvious fractal characterization, pavement texture can be characterized by using the method of fractal interpolation functions. The rougher the pavement texture, the higher the fractal characterization is. And they have an extremely significant linear relationship. The skidding resistance of different pavement can be predicted by using the linear relationship.

关 键 词：道路工程 路表纹理 抗滑性 分维值 预估 

分 类 号：U416[交通运输工程—道路与铁道工程]