| 基于直道足尺车辙试验的沥青路面重载轴载换算方法研究 |
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| 引用本文： | 颜利,周晓青,李宇峙,邵腊庚.基于直道足尺车辙试验的沥青路面重载轴载换算方法研究[J].公路交通科技,2006,23(3):35-39. |
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| 作者姓名： | 颜利 周晓青 李宇峙 邵腊庚 |
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| 作者单位： | 1. 长沙理工大学,道路工程交通部重点实验室,湖南,长沙,410076
2. 同济大学,道路与交通工程教育部重点实验室,上海,200092 |
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| 摘 要： | 车辙现已成为沥青路面一个严重问题,车辙也将发展成为沥青路面设计指标之一,故需建立起与其相对应的轴载换算公式。通过对3种典型的沥青路面结构进行直线式加速加载足尺试验,对不同重载作用下路面车辙随荷载作用次数的变化关系进行分析,得到了车辙预估方程,进而用等形变法建立了基于路面车辙等效的重载轴载换算公式。实验证明,利用该这个公式,再通过车辙预估方程计算的车辙与直道实测车辙数据拟合情况较好。
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| 关 键 词： | 直线式加速加载 足尺试验 车辙 等效 重载 轴载换算 |
| 文章编号： | 1002-0268(2006)03-0035-05 |
| 收稿时间： | 2004-12-17 |
| 修稿时间： | 2004年12月17 |
Reseach on Heavy-load Axle Conversion for Asphalt Pavement Based on Rutting Test on Full Scale Linear Track |
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| YAN Li,ZHOU Xiao-qing,LI Yu-zhi,SHAO La-geng.Reseach on Heavy-load Axle Conversion for Asphalt Pavement Based on Rutting Test on Full Scale Linear Track[J].Journal of Highway and Transportation Research and Development,2006,23(3):35-39. |
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| Authors: | YAN Li ZHOU Xiao-qing LI Yu-zhi SHAO La-geng |
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| Institution: | 1. Key laboratory of Road and Traffic Engineering of the Ministry of Communications, Changsha University of Science and Technology, 2.Key laboratory of Road and Traffic Engineering of the Ministry of Education, Tongji University , Shanghai 200092, China |
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| Abstract: | At present,rutting has been one of the serious problems in asphalt pavement.It will become one of the design indexes in asphalt pavement design specification in near future.Therefore the axle load conversion expression corresponding to rut needs to be established.The paper analyses the relation between rut depth under heavy-load and the cumulative number of the load application by means of full scale test on the Linear Accelerated Loading Facilities of three kinds of typical asphalt pavement structures,and the estimation model of rutting is established.Furthermore,the equation of axle load conversion under heavy-load is formed with the deformation equivalent method.And the results from rutting predict-equation with the the equation of axle load conversion under heavy-load fit the testing results well. |
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| Keywords: | Linear accelerated loading facilities Full scale test Rutting Equivalent Heavy-load Axle load conversion |
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