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Measurement of rutting in asphalt pavements.

机译:沥青路面车辙的测量。

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摘要

Rutting is one of the most common distresses seen on the nation's highways. Highway agencies use this distress as an indicator of the performance of their roadways in their pavement management systems. One of the resolutions used for correcting rutting is to mill off the pavement surface and overlay with new mix. This method of correcting the problem may not be the best solution if the rutting is caused by some layer other than the surface of the pavement.; However, it is difficult to determine the predominant cause of the rutting on a network level basis. The purpose of this study was to determine if the predominant cause of the rutting could be determined in an automated manner using the transverse profile. The study found two potential models that allow for prediction of the predominant cause approximately 60% of the time. In addition, the study determined that a 5-sensor rut bar has a correlation to rut depth as determined from a rod and level elevation survey of approximately 0.4 and cannot be relied upon to accurately measure rut depth. A minimum of 9 sensors is required for measuring the rutting with sufficient accuracy for pavement management.
机译:车辙是在美国高速公路上最常见的困扰之一。公路部门将此困扰作为路面管理系统中道路性能的指标。用于校正车辙的解决方法之一是铣削人行道表面并铺上新混合物。如果车辙是由人行道表面以外的其他层引起的,则这种纠正问题的方法可能不是最佳解决方案。但是,很难在网络级别上确定车辙的主要原因。这项研究的目的是确定是否可以使用横断面自动确定车辙的主要原因。该研究发现了两个潜在的模型,这些模型可以在大约60%的时间内预测出主要的原因。此外,研究确定5传感器车辙条与车辙深度具有相关性,而车辙深度是根据杆和水平高度调查确定的,约为0.4,因此不能依靠它来准确测量车辙深度。最少需要9个传感器来测量车辙,并具有足够的精度以进行路面管理。

著录项

  • 作者

    Simpson, Amy Louise.;

  • 作者单位

    The University of Texas at Austin.;

  • 授予单位 The University of Texas at Austin.;
  • 学科 Engineering Civil.
  • 学位 Ph.D.
  • 年度 2001
  • 页码 96 p.
  • 总页数 96
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 建筑科学;
  • 关键词

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