交通运输工程与信息学报Issue(4)：63-70,8.DOI:10.3969/j.issn.1672-4747.2013.04.011
基于车辙等效的沥青路面轴载换算方法
Conversion Method of Axle Load for Asphalt Pavements Based on the Rutting Equivalent
摘要
Abstract
The conversion method of axle load was proposed for asphalt pavements based on the rutting equivalent using the ratio of shear stress to strength as an indicator. The typical pavement structures were analyzed using a finite element model. The conversion exponent nwas calculated for different environmental and loading conditions. The nequation was obtained using a multiple linear regression. Finally, the proposed method was compared with the current specifications. It is found that the asphalt layer thickness, asphalt layer location, mix type, temperature and traffic speed have significant effects on the conversion exponent n. Also, it was observed that the ratio of shear stress to strength was nicely correlated with the rutting performance. It did not depend on the mix type, stress and temperature levels. The proposed method could be used as the useful supplement to the current specifications. The conversion exponent nshould be individually calculated for each asphalt layer.关键词
沥青路面/车辙/抗剪性能/轴载换算Key words
Asphalt pavement/rutting/shear properties/axle load conversion分类
交通工程引用本文复制引用
李强,倪富健,李国芬..基于车辙等效的沥青路面轴载换算方法[J].交通运输工程与信息学报,2013,(4):63-70,8.基金项目
高等学校博士学科点专项科研基金（20123204120011）；留学人员科技活动项目择优资助经费；江苏省博士后科研资助计划项目（1202010C）；南京林业大学高层次留学回国人员和引进高层次人才科研基金。 （）
