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

Elucidation of the mechanism of alternating mainstream change at the bifurcated channel in alluvial fan rivers and its development of countermeasures

Research Project

Project/Area Number 19H02243
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 22040:Hydroengineering-related
Research InstitutionKitami Institute of Technology

Principal Investigator

Watanabe Yasuharu  北見工業大学, 工学部, 教授 (00344424)

Co-Investigator(Kenkyū-buntansha) 竹林 洋史  京都大学, 防災研究所, 准教授 (70325249)
川村 里実 (山口里実)  国立研究開発法人土木研究所, 土木研究所(寒地土木研究所), 主任研究員 (70399583)
Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥17,290,000 (Direct Cost: ¥13,300,000、Indirect Cost: ¥3,990,000)
Fiscal Year 2021: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2020: ¥6,760,000 (Direct Cost: ¥5,200,000、Indirect Cost: ¥1,560,000)
Fiscal Year 2019: ¥7,540,000 (Direct Cost: ¥5,800,000、Indirect Cost: ¥1,740,000)
Keywords扇状地河川 / 谷底平野 / 河道変動 / 流路変動 / 突発災害 / 交番現象
Outline of Research at the Start

本研究では,大規模出水時の河道の突発的な移動の機構を解明するとともにその対策手法の開発を目指しており,以下の項目を実施する.
1)現地データに基づく河川周辺地形と氾濫状況の関係に関する分析(2019年度),2)流路の交番現象による河道の移動機構の解明(2019~2020年度前半),3)山地部からの土砂供給特性の影響の把握(2019~2020年度前半),4)節腹連続河道の地形形成機構の解明(2019~2020年度前半),5)突発的に生じる河道の移動機構の解明(2020~2021年度前半),6)対策手法の開発(2021年度)

Outline of Final Research Achievements

Sediment supply due to debris flow, etc. causes severe flow path fluctuations due to sedimentation in the downstream river channel, but the effect is greatly affected by the flow pattern of the debris flow.
The flow path alternating mainstream changephenomenon, which is the main cause of flow path fluctuations in alluvial fan rivers, tends to become more active as the flow rate increases, but there are cases where it cannot be said unconditionally depending on the braided channel shape.
In addition, although the alternating mainstream change is greatly affected by vegetation on flood plain, the branching characteristics of the flow path that develops differ greatly depending on the characteristics of whether or not it is easily flowded of the vegetation.

Academic Significance and Societal Importance of the Research Achievements

出水時に突発的に生じる扇状地河川の河道の移動は,山地区間からの一時的な大量の土砂供給等や植生の流出のしやすさや分岐部の形状を取り込む必要があり,これまで現象が解明されてきた中下流域の現象とは明らかにそのメカニズムが異なっていることが明らかとなり,扇状地河川における河道計画・維持手法についての着目点が明確にされた.

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • Research Products

    (45 results)

All 2022 2021 2020 2019

All Journal Article (30 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 21 results,  Open Access: 4 results) Presentation (15 results) (of which Int'l Joint Research: 4 results)

  • [Journal Article] Installation and adaptive management of T-shaped and L-shaped spur dikes to control bed deformation and diversify physical environment in rivers2021

    • Author(s)
      Sumi Takashi、Takebayashi Hiroshi、Sakuma Masami、Hasegawa Minoru、Ito Kanako、Yamamoto Seiji、Shibata Gen
    • Journal Title

      Journal of Hydro-environment Research

      Volume: 37 Pages: 13-31

    • DOI

      10.1016/j.jher.2021.04.002

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] EXPERIMENTS ON THE EFFECT OF RIVERBANK VEGETATION ON THE CHANNEL MORPHOLOGY - THE CASE THAT THE ROOTS ARE SHORT RELATIVE TO THE BANK HEIGHT -2021

    • Author(s)
      山口里実, 久加朋子, 南郁慧, 清水康行, 岩崎理樹
    • Journal Title

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

      Volume: 77 Issue: 2 Pages: I_721-I_726

    • DOI

      10.2208/jscejhe.77.2_I_721

    • NAID

      130008160221

    • ISSN
      2185-467X
    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] SHISHAMO SMELT SPAWNING SITES IN AZUMA RIVER AND IMPACTS OF SILT CONCENTRATION FROM LANDSLIDES2021

    • Author(s)
      久加朋子, 加藤康充, 山口里実, 富田邦裕, 今日出人, 清水康行
    • Journal Title

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

      Volume: 77 Issue: 2 Pages: I_139-I_144

    • DOI

      10.2208/jscejhe.77.2_I_139

    • NAID

      130008160015

    • ISSN
      2185-467X
    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] FLUME EXPERIMENTS TO STUDY THE DEVELOPMENT PROCESS OF SAND WAVES IN THE BACKWATER SECTION2021

    • Author(s)
      INAMI Yu、KYUKA Tomoko、YAMAGUCHI Satomi、YOSHIKAWA Yasuhiro
    • Journal Title

      Journal of Japan Society of Civil Engineers, Ser. A2 (Applied Mechanics (AM))

      Volume: 77 Issue: 2 Pages: I_413-I_423

    • DOI

      10.2208/jscejam.77.2_I_413

    • NAID

      130008150552

    • ISSN
      2185-4661
    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 洪水時における付着物の影響を考慮した樹林帯内抵抗評価2021

    • Author(s)
      油川曜佑、渡邊康玄
    • Journal Title

      河川技術論文集

      Volume: 27 Pages: 247-252

    • NAID

      130008113971

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 大規模な側岸侵食と低水護岸背後洗掘の発生プロセス―音更川における被災の要因分析と急流河川における今後の対策に向けて―2021

    • Author(s)
      川村里実, 久加朋子, 岡部和憲
    • Journal Title

      北海道開発技術研究発表会論文

      Volume: 64

    • Related Report
      2020 Annual Research Report
  • [Journal Article] 植生による河岸の耐侵食性が蛇行河川の流路変動に与える影響2021

    • Author(s)
      南郁慧, 久加朋子, 山口里実, 清水康行, 今日出人, 岩崎理樹
    • Journal Title

      土木学会北海道支部論文報告集

      Volume: 77

    • Related Report
      2020 Annual Research Report
  • [Journal Article] 札内川の河道攪乱に及ぼす置土の効果2021

    • Author(s)
      葛西 大樹,渡邊 康玄,小田垣 和篤,工藤 拓也,川村 里実
    • Journal Title

      土木学会北海道支部論文報告集

      Volume: 77

    • Related Report
      2020 Annual Research Report
  • [Journal Article] 音更川における堤防侵食対策の効果と課題-流路変動にともなう大規模河岸侵食に対して実施した危険度評価の検証-2020

    • Author(s)
      柏谷和久, 桑村貴志,泉典洋, 渡邊康玄, 山口里実, 横山 洋
    • Journal Title

      河川技術論文集

      Volume: 26 Pages: 503-508

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Dominating factors influencing rapid meander shift and levee breaches caused by a record-breaking flood in the Otofuke River, Japan2020

    • Author(s)
      Tomoko Kyuka, Kazunori Okabe, Yasuyuki Shimizu, Satomi Yamaguchi, Kazuyoshi Hasegawa, Kho Shinjo
    • Journal Title

      Journal of Hydro-environment Research

      Volume: 31 Pages: 76-89

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Morphodynamic effects of vegetation life stage on experimental meandering channels2020

    • Author(s)
      Kyuka Tomoko, Yamaguchi Satomi, Inoue Yusuke, Arnez Ferrel Kattia Rubi, Kon Hideto, Shimizu Yasuyuki
    • Journal Title

      Earth Surface Processes and Landforms

      Volume: 46 Issue: 7 Pages: 1-13

    • DOI

      10.1002/esp.5051

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Vegetation effects on the lateral channel migration during 2016 August floods in the Otofuke River2020

    • Author(s)
      Tomoko Kyuka, Satomi Yamaguchi, Kazunori Okabe, Yasuyuki Shimizu, Hideto Kon
    • Journal Title

      Proceedings of 22nd IAHR-APD

      Volume: 22

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Restoration of the shifting mosaic of floodplain forests under a flow regime altered by a dam2020

    • Author(s)
      Futoshi Nakamura, Yasuharu Watanabe, Junjiro Negishi, Takumi Akasaka, Yuki Yabuhara, Akira Terui, Satoshi Yamanaka and Miwa Konno
    • Journal Title

      Ecological Engineering

      Volume: 157

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 札内川における中規模フラッシュ放流に伴う置土による河道撹乱の効果2020

    • Author(s)
      小田垣和篤,渡邊康玄
    • Journal Title

      河川技術論文

      Volume: 26 Pages: 527-532

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 土石流・掃流砂・浮遊砂・泥流の統一解釈2020

    • Author(s)
      江頭進治・竹林洋史・萬矢敦啓・原田大輔
    • Journal Title

      土木学会論文集B1(水工学)

      Volume: 76

    • NAID

      130008122527

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 水制工を用いた動的安定状態の交互砂洲の形成に関する実験的研究2020

    • Author(s)
      中村創・竹林洋史・橋本健一
    • Journal Title

      土木学会論文集B1(水工学)

      Volume: 76

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] ハイドロバリヤー水制を用いた河道横断形状の二極化の低減に関する研究2020

    • Author(s)
      中村創・竹林洋史
    • Journal Title

      土木学会論文集B1(水工学)

      Volume: 76

    • NAID

      130008122516

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Numerical Simulation of a Debris Flow on the Basis of a Two-Dimensional Continuum Body Model2020

    • Author(s)
      Takebayashi H. and Fujita, M.
    • Journal Title

      Geosciences

      Volume: 10 Issue: 2 Pages: 45-45

    • DOI

      10.3390/geosciences10020045

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] 河岸の樹木が側岸侵食に与える影響について2020

    • Author(s)
      川村里実・久加朋子・矢部浩規
    • Journal Title

      国土交通省北海道開発局令和元年度技術研究発表会

      Volume: -

    • Related Report
      2019 Annual Research Report
  • [Journal Article] 節腹連続河道の形成と床固工群の設置に関する数値計算2020

    • Author(s)
      伊藤朱花・渡邊康玄
    • Journal Title

      土木学会北海道支部論文報告集

      Volume: 76

    • Related Report
      2019 Annual Research Report
  • [Journal Article] 蛇行河岸の浸食・堆積土量と出水ハイドログラフの関係-常呂川における3D地形計測結果と数値シミュレーション-2020

    • Author(s)
      佐々木章允・長谷川和義・渡邊康玄
    • Journal Title

      土木学会北海道支部論文報告集

      Volume: 76

    • Related Report
      2019 Annual Research Report
  • [Journal Article] 2019年10月台風19号による千曲川の河川構造物の被災調査2020

    • Author(s)
      松田朋也・川尻峻三・渡邊康玄・三浦竜・渡邉健治
    • Journal Title

      土木学会北海道支部論文報告集

      Volume: 76

    • Related Report
      2019 Annual Research Report
  • [Journal Article] FLOW CHARACTERISTICS OF DEBRIS FLOW WHICH WAS HAPPENED IN KUMANO, HIROSHIMA IN JULY, 20182019

    • Author(s)
      竹林洋史・藤田正治
    • Journal Title

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

      Volume: 75 Issue: 1 Pages: 362-369

    • DOI

      10.2208/jscejhe.75.1_362

    • NAID

      130007812395

    • ISSN
      2185-467X
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 急流河川における低水護岸背後の高水敷侵食特性に関する水理模型実験2019

    • Author(s)
      山口里実・久加朋子・岡部和憲・桑村貴志
    • Journal Title

      土木学会論文集B1(水工学)

      Volume: 75, 2

    • NAID

      40022085524

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 急流河川における将来洪水流量を考慮した河岸侵食特性と河道計画に関する考察2019

    • Author(s)
      岡部和憲, 久加朋子・山口里実・清水康行・新庄興・長谷川和義
    • Journal Title

      土木学会論文集B1(水工学)

      Volume: 75, 2

    • NAID

      40022086232

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 急流河川に繁茂する植生流失特性の違いに伴う流路変動特性に関する実験2019

    • Author(s)
      井上佑輔・久加朋子・山口里実・今日出人・清水康行
    • Journal Title

      土木学会論文集B1(水工学)

      Volume: 75, 2

    • NAID

      40022085433

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 2016年8月北海道豪雨時における高原大橋の被災要因と対策の効果2019

    • Author(s)
      松田朋也・渡邊康玄
    • Journal Title

      自然災害科学J.JSNDS

      Volume: 38 Pages: 43-56

    • NAID

      130007806247

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 平成30年7月豪雨による北海道北部・東部における河川構造物の被災調査2019

    • Author(s)
      川尻峻三・渡邊康玄・松田朋也・御厩敷公平・宮森保紀
    • Journal Title

      土木学会河川技術論文集

      Volume: 25 Pages: 85-90

    • NAID

      120007180773

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A hydraulic model experiment on the relationship between sediment transport characteristics and changes in watercourses around a low-water revetment or spur dikes2019

    • Author(s)
      Satomi Yamaguchi, Tomoko Kyuka
    • Journal Title

      Proceedings of IAHR World Congress, 2019

      Volume: -

    • Related Report
      2019 Annual Research Report
  • [Journal Article] 2016年出水後の十勝川における流路変動および側岸侵食について2019

    • Author(s)
      川村里実・大石哲也・矢部浩規
    • Journal Title

      国土交通省令和元年度国土技術研究会

      Volume: -

    • Related Report
      2019 Annual Research Report
  • [Presentation] 土砂による橋梁部の河道閉塞と氾濫についての研究2022

    • Author(s)
      伊東直哉・竹林洋史・藤田正治
    • Organizer
      令和4年度(公社)砂防学会研究発表会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 平成28年8月出水時におけるペケレベツ川2号砂防堰堤による土砂捕捉効果の検証2022

    • Author(s)
      永谷直昌・泉山寛明・竹林洋史・山越隆雄
    • Organizer
      令和4年度(公社)砂防学会研究発表会
    • Related Report
      2021 Annual Research Report
  • [Presentation] マルチスケール流域土砂動態モデルの開発と適用2022

    • Author(s)
      西尾潤太・藤田正治・竹林洋史・山野井一輝
    • Organizer
      令和4年度(公社)砂防学会研究発表会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 交互砂州上に存在する樹木群の中規模洪水時における流出と砂州に与える影響2022

    • Author(s)
      油川曜佑,渡邊康玄
    • Organizer
      土木学会北海道支部令和3年度 年次技術研究発表会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 植生による河岸の耐侵食性が蛇行河川の流路変動に与える影響2021

    • Author(s)
      南郁慧
    • Organizer
      土木学会北海道支部年次技術研究発表会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 札内川の河道攪乱に及ぼす置土の効果2021

    • Author(s)
      葛西 大樹
    • Organizer
      土木学会北海道支部年次技術研究発表会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 大規模な側岸侵食と低水護岸背後洗掘の発生プロセス―音更川における被災の要因分析と急流河川における今後の対策に向けて―2020

    • Author(s)
      川村里実
    • Organizer
      北海道開発技術研究発表会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Vegetation effects on the lateral channel migration during 2016 August floods in the Otofuke River2020

    • Author(s)
      Tomoko Kyuka
    • Organizer
      22nd IAHR-APD
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 節腹連続河道の形成と床固工群の設置に関する数値計算2020

    • Author(s)
      伊藤朱花(渡邊康玄)
    • Organizer
      令和元年度土木学会北海道支部技術研究発表会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 2018年7月に広島で発生した土石流の氾濫特性2019

    • Author(s)
      竹林洋史
    • Organizer
      2019年度(公社)砂防学会研究発表会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 急流河川における低水護岸背後の高水敷侵食特性に関する水理模型実験2019

    • Author(s)
      山口里実
    • Organizer
      第64回土木学会水工学講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] A hydraulic model experiment on the relationship between sediment transport characteristics and changes in watercourses around a low-water revetment or spur dikes2019

    • Author(s)
      Satomi Yamaguchi
    • Organizer
      39th IAHR World Congress
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 2016年8月北海道豪雨時における高原大橋の被災要因と対策の効果2019

    • Author(s)
      松田朋也(渡邊康玄)
    • Organizer
      自然災害学会学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Effective artificial sediment supply to a river channel disturbance2019

    • Author(s)
      Ayaka Ito (Yasuharu Watanabe)
    • Organizer
      11th Symposium on River, Coastal and Estuarine Morphodynamics
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Influence of the installation interval of groundsills to a channel shift in alluvial fan rivers2019

    • Author(s)
      Ayaka Ito (Yasuharu Watanabe)
    • Organizer
      14th International Symposium on River Sedimentation
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research

URL: 

Published: 2019-04-18   Modified: 2023-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi