• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Safety improvement of bridges against flash flood associated with debris flow

Research Project

Project/Area Number 17H03299
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Structural engineering/Earthquake engineering/Maintenance management engineering
Research InstitutionRitsumeikan University

Principal Investigator

Izuno Kazuyuki  立命館大学, 理工学部, 教授 (90168328)

Co-Investigator(Kenkyū-buntansha) 五十嵐 晃  京都大学, 防災研究所, 教授 (80263101)
酒井 久和  法政大学, デザイン工学部, 教授 (00360371)
石田 優子  立命館大学, 総合科学技術研究機構, 研究員 (50710612)
竹田 周平  福井工業大学, 工学部, 教授 (60511954)
里深 好文  立命館大学, 理工学部, 教授 (20215875)
野阪 克義  立命館大学, 理工学部, 教授 (50373105)
Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥17,030,000 (Direct Cost: ¥13,100,000、Indirect Cost: ¥3,930,000)
Fiscal Year 2019: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2018: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2017: ¥6,110,000 (Direct Cost: ¥4,700,000、Indirect Cost: ¥1,410,000)
Keywords構造工学 / 洪水 / 橋梁 / 防災 / 土石流
Outline of Final Research Achievements

Understanding the forces exerted on bridges by floods and debris flows has become an important issue in Japan, because heavy rains have frequently occurred recently. The effects of fairings on reducing hydrodynamic forces on bridges during flood were studied. Covering the entire sides with fairings is difficult under some circumstances, however, the results showed that fairings that cover more than 75% the width of the bridge with an open grating slab and/or a steel pipe on upstream side could reduce drag and lift.
Due to the floating debris accumulated at the bridge piers, the river water overflows and erodes grounds around the bridge abutments. This project developed a program to evaluate the improvement effect on erosion of the ground around bridge abutments. Further, traditional stakes on upstream side to prevent the floating debris to be caught at bridge piers were found to be effective from experiments and numerical simulations.

Academic Significance and Societal Importance of the Research Achievements

落橋や橋の流出は貴重な社会資本の損失であるのみならず,災害後における救援や地域の復旧に多大な遅延をもたらす.山間部の集落が孤立する事例も多い.しかし,これまで構造工学分野においては,津波や洪水といった時間的に短いスケールの突発的な水害はほとんど考慮されてこなかった.一方,水理学分野においても,橋梁は河道を阻害する剛体としての扱いに留まっていた.地盤工学分野でも橋台背面の裏込め土に関して,洪水対策までは考えられていなかった.本研究で構造工学分野と水理学分野と地盤工学分野の研究者が共同研究して成果を得たことで,境界領域に新規研究分野を設定する契機となった.

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Annual Research Report
  • 2017 Annual Research Report
  • Research Products

    (20 results)

All 2019 2018 2017 Other

All Journal Article (7 results) (of which Peer Reviewed: 7 results,  Open Access: 1 results) Presentation (11 results) (of which Int'l Joint Research: 1 results) Remarks (2 results)

  • [Journal Article] Anti-Tsunami Measures for Bridges using Partial Fairings2019

    • Author(s)
      川崎肇,伊津野和行
    • Journal Title

      Journal of Japan Association for Earthquake Engineering

      Volume: 19 Issue: 5 Pages: 5_184-5_191

    • DOI

      10.5610/jaee.19.5_184

    • NAID

      130007719052

    • ISSN
      1884-6246
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] ANTI-TSUNAMI MEASURES FOR BRIDGES USING PARTIAL FAIRINGS AND GRATING SLABS2019

    • Author(s)
      Hajime Kawasaki and Kazuyuki Izuno
    • Journal Title

      Journal of Japan Association for Earthquake Engineering

      Volume: 19 Issue: 8 Pages: 8_38-8_45

    • DOI

      10.5610/jaee.19.8_38

    • NAID

      130007777050

    • ISSN
      1884-6246
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 流域特性を考慮した流木対策の提案2019

    • Author(s)
      原田紹臣,木村一郎,朝位孝二,里深好文,水山高久
    • Journal Title

      河川技術論文集

      Volume: 25 Pages: 675-680

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A STUDY ON THE RISK ASSESSMENT METHOD OF THE SMALL SEDIMENT INFLOW INTO THE RAILWAY TRACK2019

    • Author(s)
      森泰樹,藤井昌隆,杉山友康,里深好文
    • Journal Title

      Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering)

      Volume: 75 Issue: 1 Pages: 31-48

    • DOI

      10.2208/jscejhe.75.31

    • NAID

      130007651655

    • ISSN
      2185-467X
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] EFFECTS OF PARTIAL BRIDGE FAIRINGS ON REDUCING HYDRODYNAMIC FORCES2018

    • Author(s)
      川崎肇,伊津野和行
    • Journal Title

      Journal of Japan Society of Civil Engineers, Ser. A1 (Structural Engineering & Earthquake Engineering (SE/EE))

      Volume: 74 Issue: 3 Pages: 431-439

    • DOI

      10.2208/jscejseee.74.431

    • NAID

      130007520041

    • ISSN
      2185-4653
    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 鋼橋の横荷重に対する抵抗メカニズムに関する一考察2018

    • Author(s)
      楠田昂平,野阪克義
    • Journal Title

      鋼構造年次論文報告集

      Volume: 26 Pages: 510-517

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 既設不透過型砂防堰堤における流木対策の高度化に関する提案2018

    • Author(s)
      高山翔揮・中谷加奈・里深好文・水山高久
    • Journal Title

      土木学会論文集B1(水工学)

      Volume: 74-4

    • NAID

      130007628109

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] セメント系固化材を用いた橋台背面流出防止対策に関する実験的研究2019

    • Author(s)
      石田優子,田崎裕貴,高山翔貴,里深好文,伊津野和行
    • Organizer
      第38回日本自然災害学会学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Effect of cement soil stabilization on the prevention of soil outflow from back of the bridge abutment2019

    • Author(s)
      Yuko Ishida, Shoki Takayama, Kazuyuki Izuno, Yoshifumi Satofuka, Taizo Kobayashi and Ryoichi Fukagawa
    • Organizer
      9th International Conference on Geotechnique, Construction Materials and Environment
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 部分的フェアリングによる橋梁の対津波補強に関する研究2018

    • Author(s)
      川崎肇,伊津野和行
    • Organizer
      第15回日本地震工学シンポジウム
    • Related Report
      2018 Annual Research Report
  • [Presentation] 流木の回転機構に着目した効果的な流木捕捉に関する研究2018

    • Author(s)
      高山翔揮,原田紹臣,里深好文,中谷加奈,水山高久
    • Organizer
      砂防学会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 既設コンクリート堰堤への流木捕捉機能追加に関する実験的研究2018

    • Author(s)
      吉田一雄,松元志津佳,里深好文,高山翔揮,坂本良祐,嶋丈示,水山高久
    • Organizer
      砂防学会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 掃流区間におけるコンクリートスリット堰堤の流木捕捉に関する研究2018

    • Author(s)
      佐藤厚慈,原田紹臣,伊藤靖,中谷加奈,高山翔揮,里深好文,水山高久
    • Organizer
      砂防学会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 道路盛土横断排水工における閉塞軽減構造の土石流及び流木捕捉機能に関する一考察2018

    • Author(s)
      坂本良祐,原田紹臣,高山翔揮,里深好文,松元志津佳,吉田一雄,中谷加奈,水山高久
    • Organizer
      砂防学会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 橋梁に設置された木除杭の性能に関する実験2018

    • Author(s)
      竹田周平
    • Organizer
      第15回日本地震工学シンポジウム
    • Related Report
      2018 Annual Research Report
  • [Presentation] 鋼橋の横荷重に対する抵抗メカニズムに関する解析的検討2018

    • Author(s)
      楠田昂平,野阪克義
    • Organizer
      第73回土木学会年次学術講演会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 2017九州豪雨による橋の被害2017

    • Author(s)
      伊津野和行
    • Organizer
      防災フロンティア研究センター2017年度第2回セミナー
    • Related Report
      2017 Annual Research Report
  • [Presentation] 平成29年九州北部豪雨により損傷した橋梁の被害概要2017

    • Author(s)
      竹田周平
    • Organizer
      橋梁の対津波設計に関するシンポジウム
    • Related Report
      2017 Annual Research Report
  • [Remarks] Bridge Hydraulics

    • URL

      http://www.ritsumei.ac.jp/se/rv/izuno/kaken2017/

    • Related Report
      2019 Annual Research Report 2018 Annual Research Report
  • [Remarks] 研究室ホームページBridge Hydraulics

    • URL

      http://www.ritsumei.ac.jp/se/rv/izuno/kaken2017/

    • Related Report
      2017 Annual Research Report

URL: 

Published: 2017-04-28   Modified: 2021-02-19  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi