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Evaluation of the Effects of Canadian Climatic Conditions on Pavement Performance Using the Mechanistic Empirical Pavement Design Guide.

机译:使用《机械式经验路面设计指南》评估加拿大气候条件对路面性能的影响。

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摘要

This thesis attempts to explore the implementation of the Mechanistic Empirical Pavement Design Guide (MEPDG) in Canada, specifically in Alberta. In order to achieve this goal, quality of Canadian climate data files used for the MEPDG and its effects on flexible pavement performance were evaluated. Results showed that temperature and precipitation data used in the MEPDG are close to Environment Canada data. This study demonstrated that asphalt concrete rutting, total rutting and longitudinal cracking were sensitive to Canadian climate. However, alligator cracking, transverse cracking and International Roughness Index (IRI) were found less sensitive to climatic factors.;In addition, this study compared Alberta Transportation Pavement Design (ATPD) method and the MEPDG. Comparison results revealed that pavement performance (IRI) is quite close (< 8% difference) using these two methods. According to the MEPDG, pavement designed by the ATPD method underestimates pavement thickness at poor subgrade and high traffic conditions.
机译:本文试图探索《机械化经验路面设计指南》(MEPDG)在加拿大,特别是在艾伯塔省的实施情况。为了实现这一目标,评估了用于MEPDG的加拿大气候数据文件的质量及其对柔性路面性能的影响。结果表明,MEPDG中使用的温度和降水数据与加拿大环境部的数据接近。这项研究表明,沥青混凝土的车辙,总车辙和纵向裂缝对加拿大气候敏感。然而,发现鳄鱼皮开裂,横向开裂和国际粗糙度指数(IRI)对气候因素的敏感性较低。此外,本研究还比较了艾伯塔省交通运输路面设计(ATPD)方法和MEPDG。比较结果表明,使用这两种方法的路面性能(IRI)相当接近(相差<8%)。根据MEPDG的说法,通过ATPD方法设计的路面在低劣的路基和高通行条件下低估了路面厚度。

著录项

  • 作者

    Saha, Jhuma.;

  • 作者单位

    University of Alberta (Canada).;

  • 授予单位 University of Alberta (Canada).;
  • 学科 Engineering Civil.
  • 学位 M.S.
  • 年度 2011
  • 页码 208 p.
  • 总页数 208
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 老年病学;
  • 关键词

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