ESTIMATION METHOD OF CAVITY BELOW THE ROAD SURFACE CONSIDERING SOUNDNESS OF PAVEMENT FOR THE HEAVY TRAFFIC ROAD

舗装の健全性を考慮した重交通路線の路面下空洞の評価

In this paper, simple evaluation method of cavity below the road surface considering soundness of pavement was proposed by applying results of FWD (Falling Weight Deflectometer) test and sinkhole detection at national highways. Firstly, the influence on FWD deflection by the difference of scale and position for the cavity was analyzed. Then the authors used the simple method with the isotropic circular analysis and carried out the evaluation for risk of the cavity in consideration of soundness of the pavement. As a result, the classified cavity confirmed that it was evaluated the risk by nondestructive tests in the cavity on the heavy traffic road. Furthermore, from depth and signal width of the cavity and soundness of the pavement, the authors suggested an evaluation method of the priority of the repair.　本論文は，重交通路線で実施された地中レーダーによる空洞探査結果とFWD試験結果を分析・整理し，重交通路線に存在する空洞の簡易評価手法を提案するものである．このため，まず，調査された空洞の規模および位置が空洞直上のたわみに与える影響を把握した．つぎに，等方性円板による空洞の危険性に対する簡易評価手法用いて，舗装の健全性を考慮した空洞の評価を実施した．その結果，分類された空洞は危険性の大小をおおむね適切に評価されていることを確認し，重交通路線に存在する空洞でも非破壊で空洞の危険性を評価できることを示した．さらに，分類された空洞の深さおよび信号幅と舗装の健全性から，補修の優先順位の評価方法を提案した．

• Record URL:
  https://doi.org/10.2208/jscejpe.71.I_135
• Summary URL:
  http://scholar.google.com/scholar_lookup?title=ESTIMATION+METHOD+OF+CAVITY+BELOW+THE+ROAD+SURFACE+CONSIDERING+SOUNDNESS+OF+PAVEMENT+FOR+THE+HEAVY+TRAFFIC+ROAD&author=K.+SATO&author=S.+AKIBA&author=Y.+KANOU&author=K.+AKATSU&publication_year=2015
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/21856559
• Authors:
  • SATO, Katsumi
  • AKIBA, Shoichi
  • KANOU, Yosuke
  • AKATSU, Kengo
• Publication Date: 2015

Language

• English
• Japanese

Media Info

• Media Type: Web
• Pagination: pp I_135-I_143
• Serial:
  • Journal of Japan Society of Civil Engineers, Ser. E1 (Pavement Engineering)
  • Volume: 71
  • Issue Number: 3
  • Publisher: Japan Society of Civil Engineers
  • ISSN: 2185-6559
  • Serial URL: https://www.jstage.jst.go.jp/browse/jscejpe/-char/en

Subject/Index Terms

• TRT Terms: Falling weight deflectometers; Nondestructive tests; Repairing; Sinkholes; Surface course (Pavements); Traffic loads
• Subject Areas: Highways; Pavements;

Filing Info

• Accession Number: 01597217
• Record Type: Publication
• Source Agency: Japan Science and Technology Agency (JST)
• Files: TRIS, JSTAGE
• Created Date: Apr 25 2016 2:07PM