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2008 Fiscal Year Self-evaluation Report

Channel stabilization using locally fitted measures in Bangladesh

Research Project

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Project/Area Number 18404010
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section海外学術
Research Field 水工水理学
Research InstitutionKyoto University

Principal Investigator

NAKAGAWA Hajime  Kyoto University, 防災研究所, 教授 (80144393)

Project Period (FY) 2006 – 2009
Keywordsバングラデシュ / 河岸侵食 / 河床変動 / バンダル / 安定河道 / 現地調査 / 水制 / 数値シミュレ-ション
Research Abstract

沖積河川における河岸浸食機構は、種々の要因が営力となって作用するため極めて複雑である。河道の安定を持続的に維持するには、侵食に対して何らかの対策法を適用する前に河道変動および河岸侵食の将来の変動特性を知っておく必要がある。バングラデシュでは、ガンジス川、ジャムナ川、ブラマプトラ川といった沖積河川の河道安定を図るため、水制や護岸といった河岸侵食防止対策が導入されている。しかしながら、各地でこれらの対策工が破壊されたり危険な状態になったりしているが、このような破壊現象については十分な知見が得られているとは言い難い。
そこで, 本研究ではこの問題に関してこれまで緊密な連携をとって基礎的な研究を実施してきたメンバ-が一致団結して, 4年間で(1) 河道の安定化に関する土砂水理学的調査研究、(2) 河道の安定化に関する対策方法とその現地適用性の調査研究、(3) 河道の安定化に関する数値シミュレ-ション手法の適用性の研究、(4) 低コストで最適な現地適用型河道安定化工法の調査研究、を実施し、巨大沖積河川の河道安定化に関する現地適用型対策法を開発し、現地河川でその効果について調査研究を行うものである。

  • Research Products

    (12 results)

All 2009 2008 2007 2006

All Journal Article (6 results) (of which Peer Reviewed: 6 results) Presentation (6 results)

  • [Journal Article] Characteristics of local flow and bed deformation at impermeable and permeable spur dykes2009

    • Author(s)
      Zhang, H. and Nakagawa, H.
    • Journal Title

      Annual Journal of Hydraulic Engineering,JSCE Vol.53

      Pages: 145-150

    • Peer Reviewed
  • [Journal Article] Field observations on velocity distribution around Sirajganj Hardpoint and Jamuna Bridge in Jamuna River2009

    • Author(s)
      Baba, Y., Nakagawa, H., Zhang, H. and Kawaike, K.
    • Journal Title

      Proc. of the 2nd International Conference on Water and Flood Management

      Pages: 125-131

    • Peer Reviewed
  • [Journal Article] Flow and sediment transport around impermeable or permeable groins2008

    • Author(s)
      Teraguchi, H., Nakagawa, H., Kawaike, K., Baba, Y. and Zhang, H.
    • Journal Title

      Annual Journal of Hydraulic Engineering, JSCE Vol.52

      Pages: 175-180

    • Peer Reviewed
  • [Journal Article] Impact of flood event on channel morphologies around river restoration structure2008

    • Author(s)
      Zhang, H., Nakagawa, H., Kawaike, K. and Baba, Y.
    • Journal Title

      Annual Journal of Hydraulic Engineering,JSCE Vol.52

      Pages: 181-186

    • Peer Reviewed
  • [Journal Article] Flow and sediment transport around bandals under live-bed scour condition2007

    • Author(s)
      Rasheduzzaman, M., Nakagawa, H., Zhang, H., Rahman, Md. M. and Muto Y.
    • Journal Title

      Annual Journal of Hydraulic Engineering JSCE

      Pages: 145-150

    • Peer Reviewed
  • [Journal Article] Analysis of Flow and Bed Evolution in Channels with Hydraulic Structures by FVM using Unstructured Meshes -toward Sediment Management for River Restoration-2006

    • Author(s)
      Nakagawa, H., Zhang, H. and Muto, Y.
    • Journal Title

      Proc. Of the 6th Japan-Taiwan Joint Seminar on Natural Hazard Mitigation (CD-ROM)

    • Peer Reviewed
  • [Presentation] Experimental Study on Morphological Changes induced by Groins2009

    • Author(s)
      Teraguchi, H.
    • Organizer
      DPRI Annual meeting of the 2008 year
    • Place of Presentation
      京都テルサ
    • Year and Date
      2009-02-25
  • [Presentation] Field Investigation of Bank Protection Measures along the Jamuna River in Bangladesh2009

    • Author(s)
      Zhang, H.
    • Organizer
      DPRI Annual meeting of the 2008 year
    • Place of Presentation
      京都テルサ
    • Year and Date
      2009-02-25
  • [Presentation] Local scour around bank protection spur dykes on the Brahmaputra-Jamuna River2008

    • Author(s)
      Zhang, H., Nakagawa, H., Kawaike, K. and Baba, Y
    • Organizer
      The 27^<th> Annual Meeting of the Japan Society for Natural Disaster Science
    • Place of Presentation
      Kyushu University
    • Year and Date
      20080000
  • [Presentation] Investigation on morphological consequences of spur dyke with experimental and numerical methods2008

    • Author(s)
      Zhang, H.
    • Organizer
      The 8th International Conference on Hydro-Science and Engineering
    • Place of Presentation
      Nagoya University
    • Year and Date
      2008-09-10
  • [Presentation] On the influence to the flow and bed deformation of impermeable or permeable groins2008

    • Author(s)
      Teraguchi, H.
    • Organizer
      Japan-Brazil Memorial Symposium on Science and Technology for the Celebration of 100 years
    • Place of Presentation
      Sao Paulo University, Brazil
    • Year and Date
      2008-06-02
  • [Presentation] Flow and bed deformation around river hydraulic structures : large-scale physical model experiment and numerical simulation2007

    • Author(s)
      Nakagawa, H., Zhang, H., Muto, Y. and Muramoto, Y.
    • Organizer
      The 10th International Symposium on River Sedimentation
    • Place of Presentation
      Moscow
    • Year and Date
      20070000

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Published: 2010-06-11   Modified: 2016-04-21  

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