华南理工大学学报(自然科学版) ›› 2006, Vol. 34 ›› Issue (9): 62-65.

• 交通与运输工程 • 上一篇    下一篇

柔性基层沥青路面车辙预测模型试验分析

陈少幸1 张肖宁1 徐全亮2 孟书涛2   

  1. 1,华南理工大学 道路工程研究所,广东 广州 510640;2.交通部 公路科学研究所,北京 100088
  • 收稿日期:2005-06-16 出版日期:2006-09-25 发布日期:2006-09-25
  • 通信作者: 陈少幸(1974-),男,博士生,主要从事沥青路面研究 E-mail:rrcsx@sina.com
  • 作者简介:陈少幸(1974-),男,博士生,主要从事沥青路面研究

Experimental Analysis of Rut Prediction M odel for Asphalt Pavem ent with Flexible Base

Chen Shao-xing1  Zhang Xiao-ning1  Xu Quan-liang2  Meng Shu-tao2   

  1. 1.Road Engineering Institute,South China Univ.of Tech.,Guangzhou 5 10640,Guangdong,China;2.Research Institute of Highway,the Ministry of Communications,Beijing 100088,China
  • Received:2005-06-16 Online:2006-09-25 Published:2006-09-25
  • Contact: 陈少幸(1974-),男,博士生,主要从事沥青路面研究 E-mail:rrcsx@sina.com
  • About author:陈少幸(1974-),男,博士生,主要从事沥青路面研究

摘要: 介绍了沥青路面车辙预测模型,该模型通过落锤式弯沉仪(FWD)弯沉盆反算路面不同层位的模量.采用Kenlayer程序计算各层表面的弯沉和应力,以及各层的永久变形参数,得到了不同荷载作用次数下的预测车辙,并利用足尺加速加载试验来分析该模型和车辙的形成规律.结果表明预测模型能较好地反映加载过程中车辙的形成和车辙的大小.

关键词: 沥青路面, 车辙, 落锤式弯沉仪, 加速加载

Abstract:

First,a rut prediction model,in which the moduli of different layers were inversely calculated by the FWD (Falling Weight Deflectometer)deflection basin,was introduced.Next,the deflection and stress on each surface of the layer as well as the permanent deform ation parameters of each layer were calculated using the Kenlay.er program.Then,the ruts with different loading repetition numbers were predicted.Finally,a full-scale accelerated loading test was carried out to analyze the rut prediction model and the rut form ation law.The results indicate that the prediction model accords well with the form ation and size of the practical rut.

Key words: asphalt pavement, rut, falling weight deflectometer, accelerated loading