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High accuracy evaluation on the advantage and disadvantage of finite length coastal forest at a tsunami including the modeling of the tree destruction, washout and trap-function of floating debris

Research Project

Project/Area Number 24310127
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypePartial Multi-year Fund
Section一般
Research Field Natural disaster science
Research InstitutionSaitama University

Principal Investigator

TANAKA Norio  埼玉大学, 理工学研究科, 教授 (80323377)

Co-Investigator(Kenkyū-buntansha) YAGISAWA Junji  埼玉大学, 大学院理工学研究科, 准教授 (70549998)
Project Period (FY) 2012-04-01 – 2016-03-31
Project Status Completed (Fiscal Year 2015)
Budget Amount *help
¥13,000,000 (Direct Cost: ¥10,000,000、Indirect Cost: ¥3,000,000)
Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2013: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2012: ¥9,490,000 (Direct Cost: ¥7,300,000、Indirect Cost: ¥2,190,000)
Keywords津波 / 浮遊物 / 衝突時間 / 樹木管理 / 防潮林 / 衝撃力 / バイオシールド / 海岸林 / 洗掘 / フラジリティ曲線 / 多重防御 / 河川遡上 / 数値解析
Outline of Final Research Achievements

Large tsunami sometimes overflows from embankment, usually concentrates in a gap inside a forest, breaks trees and buildings, and transports large amount of debris. It sometimes overflows from a river. This study develops a model to calculate; 1) a generation of floating debris from houses and trees, transportation and collision process, 2) a trapping mechanism by trees, and 3) a flow in a gap and the fringe of coastal forest. Using the developed model, tsunami propagation in a river and overflow phenomenon, trapping effect of coastal forest have been clarified. In addition, tsunami mitigation effect by the combination of coastal forest and embankment is analyzed, and management of coastal forest considering the destruction mode of trees is proposed.

Report

(5 results)
  • 2015 Annual Research Report   Final Research Report ( PDF )
  • 2014 Annual Research Report
  • 2013 Annual Research Report
  • 2012 Annual Research Report
  • Research Products

    (33 results)

All 2016 2015 2014 2013

All Journal Article (13 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 13 results,  Acknowledgement Compliant: 11 results,  Open Access: 5 results) Presentation (19 results) (of which Invited: 1 results) Book (1 results)

  • [Journal Article] Effectiveness of finite length inland forest in trapping tsunami-borne wood debris2016

    • Author(s)
      Pasha, G.A., Tanaka, N.
    • Journal Title

      Journal of Earthquake and Tsunami

      Volume: 10 Issue: 04 Pages: 1650008-1650008

    • DOI

      10.1142/s1793431116500081

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] 樹林帯と海岸堤防の組合せ配置による津波の海岸堤防越流量の変化2016

    • Author(s)
      五十嵐善哉,田中規夫
    • Journal Title

      土木学会論文集B1(水工学)

      Volume: 72

    • NAID

      130005312035

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Three dimensional downstream scour analysis after levee overtopping2016

    • Author(s)
      Sazia, A., Yagisawa, J., Tanaka, N.
    • Journal Title

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

      Volume: 72

    • NAID

      130005312160

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Scoured depth and length of pools and ditches generated by overtopping flow from embankments during the 2011 Great East Japan Tsunami2015

    • Author(s)
      Tanaka, N., Sato, M..
    • Journal Title

      Ocean Engineering

      Volume: 109 Pages: 72-82

    • DOI

      10.1016/j.oceaneng.2015.08.053

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] 樹形による破断・転倒現象の相違を考慮した海岸林管理に資する津波計算法の構築2015

    • Author(s)
      田中規夫・庭田侑・佐藤 創・鳥田宏行・野口宏典
    • Journal Title

      土木学会論文集B2(海岸工学)

      Volume: 71

    • NAID

      130005109299

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] レベル2津波の堤防越流に対する減勢に適した裏法側堤防構造の検討2015

    • Author(s)
      五十嵐善哉,田中規夫
    • Journal Title

      土木学会論文集B2(海岸工学)

      Volume: 71

    • NAID

      130005109302

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] 津波流体力とそのモーメントによる破壊規模ごとの家屋被害関数2015

    • Author(s)
      田中規夫,小内尭,近藤康太
    • Journal Title

      土木学会論文集B2(海岸工学)

      Volume: 71-1 Pages: 1-11

    • NAID

      130004956748

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] 樹林帯による漂流物捕捉効果を考慮した数値解析による家屋被害関数2015

    • Author(s)
      小内 尭,田中規夫
    • Journal Title

      土木学会論文集B1(水工学)

      Volume: 71-4 Pages: 727-732

    • NAID

      130005123549

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Investigation of scour pattern downstream of levee toe due to overtopping flow2015

    • Author(s)
      Sazia,A., Yagisawa, J., Tanaka, N.
    • Journal Title

      Journal of Japan Society of Civil Engineers

      Volume: 71-4 Pages: 175-180

    • NAID

      130005123640

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Geometrical characteristic of scour holes caused by overtopping flow of embankment covered with different lengths of protection works2015

    • Author(s)
      Binh, D.V., Yagisawa, J., Tanaka, N.
    • Journal Title

      Journal of Japan Society of Civil Engineers

      Volume: 71-4 Pages: 163-168

    • NAID

      130005123643

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Maximum sand sedimentation length after backwash current of tsunami; simple inverse model and laboratory experiments2014

    • Author(s)
      Furusato, E. and Norio Tanaka
    • Journal Title

      Marine Geology

      Volume: 353 Pages: 128-139

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Boulder transport by the 2011 Great East Japan tsunami: Comprehensive field observations and whither model predictions?2013

    • Author(s)
      Nandasena, N.A.K., Tanaka, N., Sasaki, Y., Osada, M.
    • Journal Title

      Marine Geology

      Volume: 346 Pages: 292-309

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 樹林帯と堤防の位置関係の違いが樹木破壊や津波減災効果に与える影響2013

    • Author(s)
      飯村耕介,田中規夫,池田裕一
    • Journal Title

      土木学会論文集B2(海岸工学)

      Volume: 69,No.2

    • NAID

      130004551106

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Presentation] Dynamics of tsunami drifted wood debris upon collision with finite length forest – a flume experiment2015

    • Author(s)
      Pasha, G.A., Ogino, K., Tanaka, N.
    • Organizer
      JSCE 17th Int. Summer Sym.
    • Place of Presentation
      岡山大学(岡山県 岡山市)
    • Year and Date
      2015-09-17
    • Related Report
      2015 Annual Research Report
  • [Presentation] 路模型実験における堤防越流量の減少に効果的な多重防御構造の検討2015

    • Author(s)
      五十嵐善哉,田中規夫
    • Organizer
      平成27年度土木学会全国大会 第70年次学術講演会
    • Place of Presentation
      岡山大学(岡山県 岡山市)
    • Year and Date
      2015-09-17
    • Related Report
      2015 Annual Research Report
  • [Presentation] 堤防裏法尻付近の樹林帯密度が落掘の洗掘深・洗掘長に及ぼす影響2015

    • Author(s)
      狩野匠,八木澤順治,田中規夫
    • Organizer
      土木学会関東支部発表会
    • Place of Presentation
      東海大学(神奈川県・平塚市)
    • Year and Date
      2015-03-05 – 2015-03-06
    • Related Report
      2014 Annual Research Report
  • [Presentation] 転倒樹木の抵抗特性に関する実験的研究2014

    • Author(s)
      小内尭,八木澤順治,田中規夫,Weerakoon S.B., Jinadasa K.B.S.N.
    • Organizer
      平成26年度土木学会全国大会 第69回年次学術講演会
    • Place of Presentation
      大阪大学(大阪府・豊中市)
    • Year and Date
      2014-09-10 – 2014-09-12
    • Related Report
      2014 Annual Research Report
  • [Presentation] The effect of submerged water depth on shear stress acting on the bed and downstream slope of levee due to overtopping2014

    • Author(s)
      Doan Van Binh, Sazia Afreen, J.Yagisawa, N.Tanaka
    • Organizer
      Proc. of JSCE 16th International Summer Symposium
    • Place of Presentation
      大阪大学(大阪府・豊中市)
    • Year and Date
      2014-09-10 – 2014-09-12
    • Related Report
      2014 Annual Research Report
  • [Presentation] 氾濫流解析結果を用いた氾濫避難行動に有用な被害情報の提案2014

    • Author(s)
      古里栄一,田中規夫
    • Organizer
      土木学会関東支部発表会
    • Place of Presentation
      東京都土木学会関東支部
    • Related Report
      2013 Annual Research Report
  • [Presentation] Vegetation bioshields for tsunami mitigation in Sri Lanka(Keynote Lecture)2013

    • Author(s)
      Norio Tanaka
    • Organizer
      Conference on Sri Lanka-Japan Collaborative Research
    • Place of Presentation
      University of Peradeniya
    • Year and Date
      2013-03-31
    • Related Report
      2012 Annual Research Report
  • [Presentation] Comparison between drag force on a house behind coastal forest and impulsive force by tsunami-driven woody debris from the forest at the Great East Japan Earthquake2013

    • Author(s)
      Tanaka, N., Suzuki, I.
    • Organizer
      IAHR
    • Place of Presentation
      中国・成都
    • Related Report
      2013 Annual Research Report
  • [Presentation] Quantitative analysis on the damage of river embankment and hinterland along the Abukumagawa River at he Great East Japan Earthquake tsunami2013

    • Author(s)
      Sato, M., Tanaka, N.
    • Organizer
      IAHR
    • Place of Presentation
      中国・成都
    • Related Report
      2013 Annual Research Report
  • [Presentation] Effect of porosity of calculation grid and drag coefficient of houses on accuracy on numerical simulation of flood inundation2013

    • Author(s)
      Onai, A., Yagisawa, J., Tanaka, N.
    • Organizer
      ACEPS
    • Place of Presentation
      スリランカ・キャンディ
    • Related Report
      2013 Annual Research Report
  • [Presentation] Local flow velocity from boulders transported by the 2011 Great East Japan tsunami2013

    • Author(s)
      N.A.K. Nandasena, Norio Tanaka, Yasushi Sasaki
    • Organizer
      Abstracts of 26th International Tsunami Symposium
    • Place of Presentation
      トルコ・ダラマン
    • Related Report
      2013 Annual Research Report
  • [Presentation] Lessons learnt from the 2011 Great East Japan tsunami: failure modes of coastal defense structures due to high-energy impact2013

    • Author(s)
      N.A.K. Nandasena, Norio Tanaka, Yasushi Sasaki
    • Organizer
      IAHS-IAPSO-IASPEI
    • Place of Presentation
      スウェーデン・ヨーテボリ
    • Related Report
      2013 Annual Research Report
  • [Presentation] Experiments on the colliding duration between a driftwood model and a woody house model for the accurate estimation of the impact force by tsunami-driven woody debris2013

    • Author(s)
      Ogino, K., Suzuki, I. and Tanaka, N.
    • Organizer
      ICSECM
    • Place of Presentation
      スリランカ・キャンディ
    • Related Report
      2013 Annual Research Report
  • [Presentation] Drag force acting on a rectangular cylinder and bed shear stress due to overtopping flow from embankment2013

    • Author(s)
      Yagisawa, J. and Tanaka, N.
    • Organizer
      ICSECM
    • Place of Presentation
      スリランカ・キャンディ
    • Related Report
      2013 Annual Research Report
  • [Presentation] 東北地方太平洋沖地震津波で阿武隈川を遡上・越水した津波による被害の局所性の要因分析2013

    • Author(s)
      庭田侑、佐藤誠幸、田中規夫
    • Organizer
      土木学会第68回年次学術講演会
    • Place of Presentation
      千葉県日大津田沼キャンパス
    • Related Report
      2013 Annual Research Report
  • [Presentation] 定常流中における流木の挙動と家屋への衝突力評価に関する基礎実験2013

    • Author(s)
      荻野和剛,鈴木一貫,田中規夫
    • Organizer
      土木学会第68回年次学術講演会
    • Place of Presentation
      千葉県日大津田沼キャンパス
    • Related Report
      2013 Annual Research Report
  • [Presentation] Vegetation Bio-Shields for Tsunami Mitigation: Lessons Learnt from Two Tsunamis in Sri Lanka and Japan, Second International Conference on “Emerging Sri Lanka: Sharing Japanese Governance and Developmental Experience”2013

    • Author(s)
      Tanaka, N.
    • Organizer
      国連大学
    • Place of Presentation
      東京工業大学大岡山キャンパス
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] 東北地方太平洋沖地震津波で阿武隈川を遡上・越水した津波による被害の局所性の要因分析2013

    • Author(s)
      庭田侑、佐藤誠幸、田中規夫
    • Organizer
      土木学会第68回年次学術講演会
    • Place of Presentation
      日大(津田沼)
    • Related Report
      2012 Annual Research Report
  • [Presentation] 定常流中における流木の挙動と家屋への衝突力評価に関する基礎実験2013

    • Author(s)
      荻野和剛, 鈴木一貫, 田中規夫
    • Organizer
      土木学会第68回年次学術講演会
    • Place of Presentation
      日大(津田沼)
    • Related Report
      2012 Annual Research Report
  • [Book] 津波と海岸林-バイオシールドの減災効果-2013

    • Author(s)
      佐々木寧, 田中規夫, 坂本知己
    • Total Pages
      209
    • Publisher
      共立出版
    • Related Report
      2012 Annual Research Report

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Published: 2012-04-24   Modified: 2019-07-29  

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