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2013 Fiscal Year Final Research Report

Anatomy of first time landslides

Research Project

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Project/Area Number 23310126
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Natural disaster science
Research InstitutionKyoto University

Principal Investigator

CHIGIRA Masahiro  京都大学, 防災研究所, 教授 (00293960)

Co-Investigator(Kenkyū-buntansha) YAMASAKI Shintaro  北見工業大学, 工学部, 助教 (40584602)
Co-Investigator(Renkei-kenkyūsha) UETA Keiichi  (財)電力中央研究所, 地球工学研究所, 上席研究員 (40371405)
Project Period (FY) 2011-04-01 – 2014-03-31
Keywords初生地すべり / 山体重力変形 / 地質構造
Research Abstract

We established how to observe and describe high-quality undisturbed drilled cores using methods and knowledge of structural geology, and consequently obtained criteria to differentiate nontectonic faults and tectonic faults. We clarified the relationship between the development of foliation and gravitational rock deformation and the development processes from gravitational slope deformation to first-time landslide.
We simulated the subsurface gravitational slope deformation that have been obtained by high-quality drilled cores by using finite difference methods, demonstrating that the internal stress strain conditions in the slope change according to the river incision forming the shear zones, which have been identified in the nature.

  • Research Products

    (28 results)

All 2013 2012 2011 Other

All Journal Article (9 results) (of which Peer Reviewed: 6 results) Presentation (13 results) (of which Invited: 3 results) Book (5 results) Remarks (1 results)

  • [Journal Article] Development of deep-seated gravitational slope deformation on a shale dip-slope : observations from high-quality drillcores2013

    • Author(s)
      Chigira, M., Hariyama, T., Yamasaki, S.
    • Journal Title

      Tectonophysics

      Volume: 605 Pages: 104-113

    • DOI

      10.1016/j.tecto.2013.04.019

    • Peer Reviewed
  • [Journal Article] Topographic precursors and geological structures of deep-seated catastrophic landslides caused by Typhoon Talas2013

    • Author(s)
      Chigira, M., Tsou, C.-Y., Matsushi, Y., Hiraishi, N., Matsuzawa, M.
    • Journal Title

      Geomorphology

      Volume: 201 Pages: 479-493

    • DOI

      10.1016/j.geomorph.2013.07.020

    • Peer Reviewed
  • [Journal Article] Landslide Amplification by Liquefaction of Runout-Path Material after the 2008 Wenchuan (M 8_0) Earthquake, China2013

    • Author(s)
      Wang, G., Huang, R., Chigira, M., Wu, X., Lourenco, S.D.N.
    • Journal Title

      Earth Surface Processes and Landforms

      Volume: 38(3) Pages: 265-274

    • DOI

      10.1002/esp.3277

    • Peer Reviewed
  • [Journal Article] 近年の斜面災害が与えた教訓2013

    • Author(s)
      千木良雅弘
    • Journal Title

      地盤工学会誌

      Volume: 61(9) Pages: 1-5

  • [Journal Article] 地質災害2013

    • Author(s)
      千木良雅弘
    • Journal Title

      地質と調査

      Volume: 137 Pages: 32-38

  • [Journal Article] Seismic recordings of landslides caused by Typhoon Talas (2011), Japan2012

    • Author(s)
      Yamada, M., Matsushi, Y., Chigira, M., Mori, J.
    • Journal Title

      Geophysical Research Letters

      Volume: 39(doi:13310.11029/12012GL052174.) Pages: L13301

    • Peer Reviewed
  • [Journal Article] 2012 年台風12 号による深層崩壊2012

    • Author(s)
      千木良雅弘, 松四雄騎, ツォウ・チンイン, 平石成美, 松沢真, 松浦純男
    • Journal Title

      京都大学防災研究所年報

      Volume: 55 Pages: 193 - 211

    • URL

      http://www.dpri.kyoto-u.ac.jp/nenpo/no55/ronbunA/a55a0p08.pdf

  • [Journal Article] Catastrophic landslide induced by Typhoon Morakot, Shiaolin, Taiwan2011

    • Author(s)
      Tsou, C.Y., Feng, Z.Y., Chigira, M
    • Journal Title

      Geomorphology

      Volume: 127(3-4) Pages: 166-178

    • DOI

      10.1016/j.geomorph.2010.12.013

    • Peer Reviewed
  • [Journal Article] Weathering mechanisms and their effects on landsliding in pelitic schist2011

    • Author(s)
      Yamasaki, S., Chigira, M
    • Journal Title

      Earth Surface Processes and Landforms

      Volume: 36(4) Pages: 481-494

    • DOI

      10.1002/esp.2067

    • Peer Reviewed
  • [Presentation] Precursory landforms and geologic structures of catastrophic landslides induced by typhoon Talas 2011 Japan2013

    • Author(s)
      Chigira, M., Matsushi, Y., Tsou, C.-Y.
    • Organizer
      American Geophysical Union. American Geophysical Union
    • Place of Presentation
      American Geophysical Union, San Francisco
    • Year and Date
      2013-12-04
    • Invited
  • [Presentation] Landslides in tectonically active countries2013

    • Author(s)
      Chigira, M., Kamai, T.
    • Organizer
      2nd G-EVER International Symposium and the 1st IUGS&SCJ International Workshop on Natural Hazards
    • Place of Presentation
      Sendai
    • Year and Date
      2013-10-19
  • [Presentation] Recent landslide hazards induced by earthquakes and rainfalls in Asia2013

    • Author(s)
      Chigira, M.
    • Organizer
      International Symposium & 9th Asian Regional Conference of IAEG (International Association of Engineering Geology and Environment)
    • Place of Presentation
      Beijing
    • Year and Date
      2013-09-24
    • Invited
  • [Presentation] Geological precursors of catastrophic landslides induced by earthquakes2013

    • Author(s)
      Chigira, M.
    • Organizer
      Japan Geoscience Union Meeting 2013
    • Place of Presentation
      Makuhari
    • Year and Date
      2013-05-23
  • [Presentation] 泥質片岩における萌芽的滑り層の形成条件2013

    • Author(s)
      山崎新太郎, 千木良雅弘, Dave Petley
    • Organizer
      日本地球惑星科学連合大会
    • Place of Presentation
      幕張
    • Year and Date
      2013-05-22
  • [Presentation] Geological and geomorphological characteristics of catastrophic landslides induced by recent earthquakes2013

    • Author(s)
      Chigira, M.
    • Organizer
      The International Symposium in Commemoration of the 5th Anniversary of the 2008 Wenchuan Earthquake.
    • Place of Presentation
      Chengdu
    • Year and Date
      2013-05-13
    • Invited
  • [Presentation] Topographic precursors and geological structures of deep-seated catastrophic landslides caused by typhoon Talas2013

    • Author(s)
      Chigira, M., Tsou, C.-Y., Matsushi, Y.
    • Organizer
      determined from the analysis of high-resolution DEMs
    • Place of Presentation
      European Geosciences Union, Vienna
    • Year and Date
      2013-04-10
  • [Presentation] Extracting small scarps to predict potential sites of deep-seated landslides2012

    • Author(s)
      Chigira, M., Tsou, C.-Y., Yokoyama, R., Shirasawa, M., Funakoshi, K., Sakurai, Y.
    • Organizer
      Japan Geoscience Union Meeting 2013
    • Place of Presentation
      Makuhari
    • Year and Date
      2012-05-23
  • [Presentation] Deep-seated catastrophic landslides induced by typhoon 12 and their precursory gravitational slope deformation2012

    • Author(s)
      Chigira, M., Tsou Ching-Ying, Matsushi, Y., Hiraishi, N., Matsuzawa, M.
    • Organizer
      Japan Geosciences Union Meeting 2012
    • Place of Presentation
      Makuhari
    • Year and Date
      2012-05-23
  • [Presentation] Rainfall, slope instability, and deep-seated landslides in Kii Mountains Japan2012

    • Author(s)
      Matsushi, Y., Yamada, M., Chigira, M.
    • Organizer
      Japan Geosciences Union Meeting 2012
    • Place of Presentation
      Makuhari
    • Year and Date
      2012-05-23
  • [Presentation] Seismic recordings of the Landslides caused by Typhoon Talas2012

    • Author(s)
      Yamada, M., Matsushi, Y., Chigira, M.
    • Organizer
      Japan Geosciences Union Meeting 2012
    • Place of Presentation
      Makuhari
    • Year and Date
      2012-05-23
  • [Presentation] A method for making wide cross-sections of fracture zone formed by deep-seated gravitational slope deformations2011

    • Author(s)
      Yamasaki, S., Chigira, M.
    • Organizer
      2nd Conference on Slope Tectonics
    • Place of Presentation
      Vienna
    • Year and Date
      2011-09-06
  • [Presentation] 頁岩の流れ盤斜面における重力変形2011

    • Author(s)
      千木良雅弘, 針山岳大
    • Organizer
      日本地すべり学会研究発表会
    • Place of Presentation
      静岡
    • Year and Date
      2011-08-31
  • [Book] 深層崩壊-どこが崩れるのか-2013

    • Author(s)
      千木良雅弘
    • Publisher
      近未来社
  • [Book] Landslides induced by the Wenchuan earthquake2012

    • Author(s)
      Chigira, M., Wang, G., Wu, S.
    • Total Pages
      383-392
    • Publisher
      Cambridge University Press
  • [Book] 地震地すべりと地質, 地震地すべり2012

    • Author(s)
      千木良雅弘
    • Total Pages
      103-109
    • Publisher
      社団法人日本地すべり学会 (編)
  • [Book] 災害地質学(斜面災害)2011

    • Author(s)
      千木良雅弘
    • Total Pages
      73-100
    • Publisher
      古今書院
  • [Book] 深層崩壊発生の地形・地質的な場2011

    • Author(s)
      千木良雅弘
    • Total Pages
      114-116
    • Publisher
      丸善出版
  • [Remarks]

    • URL

      http://www.slope.dpri.kyoto-u.ac.jp/index.html

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Published: 2015-06-25  

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