COMPRESSIVE STRAIN ESTIMATION METHOD OF GRANULAR BASE OF ASPHALT PAVEMENT USING FWD DEFLECTION CURVETURE

DOI

Bibliographic Information

Other Title
  • FWDたわみ特性によるアスファルト舗装の粒状路盤の圧縮ひずみ予測法

Abstract

<p> In this study, as a method for evaluating the soundness of the granular base directly from the FWD deflection shape, we focused on the granular base compressive strain prediction equation shown in the NCHRP report. Then, the accuracy of the NCHRP’s prediction formula was using the FWD survey results on the national highway was verified, and based on the FWD operating conditions in Japan, a new prediction equation establish method was examined. As a result, it was found that the prediction equation of NCHRP tends to deviate from analytical results of FWD using the multilayered elasticity theory (MLET). In addition, the MLET analysis results based on the FWD operating conditions in Japan were used to formulate the compressive strain prediction equation and the temperature correction equation, and the threshold for the compressive strain soundness evaluation was shown.</p>

Journal

Keywords

Details 詳細情報について

  • CRID
    1390580793825573888
  • DOI
    10.11532/jsceim.3.1_40
  • ISSN
    2436777X
  • Text Lang
    ja
  • Data Source
    • JaLC
  • Abstract License Flag
    Allowed

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