A STUDY ON EVALUATION OF PAVEMENT SOUNDNESS USING A MOBILE DEFLECTION MEASURING DEVICE

• TERADA Masaru

  (独)土木研究所 道路技術研究グループ 舗装チーム

• KAWANA Futoshi

  (独)土木研究所 道路技術研究グループ 舗装チーム

• KUBO Kazuyuki

  (独)土木研究所 道路技術研究グループ 舗装チーム

• TAKEUCHI Yasushi

  東京農業大学 地域環境科学部 生産環境工学科

• MATSUI Kunihito

  東京電機大学 理工学部建築・都市環境学系

Bibliographic Information

Other Title

• 移動式たわみ測定装置を用いた舗装の健全性評価手法に関する一検討

Abstract

 A various countries have proceeded with developing a device of continuously measuring pavement surface deflection at high speed in order to evaluate pavement bearing capacity and to utilize it for pavement maintenance. We are also aiming at developing a similar device. Several laser deflection sensors have been mounted on an existing truck and test runs are repeated at our test courses to accumulate surface deflections in order to understand the their characteristics. A method of pavement soundness evaluation has been examined using the measured data. A measure of pavement soundness is proposed by the deflection difference D₀- D₄₅ where D₀ denotes the deflection at the center of rear wheel and D₄₅ is the deflection at 450mm apart from the location of D₀. The measure shows good correlation with FWD deflections when deflections of pavement in good conditions are relatively large.

Journal

• Journal of Japan Society of Civil Engineers, Ser. E1 (Pavement Engineering)

  Journal of Japan Society of Civil Engineers, Ser. E1 (Pavement Engineering) 68 (3), I_13-I_20, 2012

  Japan Society of Civil Engineers

Keywords

• mobile deflection measuring device
• pavement soundness
• evaluation method
• FWD

Details

• CRID: 1390282680333149056
• NII Article ID: 130004559905
• DOI: 10.2208/jscejpe.68.i_13
• ISSN: 21856559
• Text Lang: ja
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed