Prediction method of occurrence of landslides in mountainous catchments

• Project/Area Number: 20780109
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Forest science
• Research Institution: University of Tsukuba
• Principal Investigator: IMAIZUMI Fumitoshi University of Tsukuba, 大学院・生命環境科学研究科, 助教 (80378918)
• Project Period (FY): 2008 – 2009
• Project Status: Completed (Fiscal Year 2009)
• Budget Amount: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000); Fiscal Year 2009: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000); Fiscal Year 2008: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
• Keywords: 表層崩壊 / 無限長斜面 / 浸透流解析 / 山地流域 / 鉛直浸透 / 安定解析

Research Abstract

We need to make clear parameters controlling slope stability to predict occurrence of landslides in large mountainous catchments. New non-dimensional representations for the slope stability were obtained by the normalization of the safety factor equation as well as equations representing groundwater infiltration. The landslide model developed in our study could explain characteristics of landslides, including timing of initiation and depth of slide surface.

Research Products

• [Journal Article] Channel initiation by surface and subsurface flows in a steep catchment of the Akaishi Mountains, Japan (2010)
  • Author(s): Fumitoshi IMAIZUMI, Tsuyoshi HATTANJI, Yuichi S. HAYAKAWA
  • Journal Title: Geomorphology 115 Pages: 32-42
  • NAID: 120007138206
  • URL: http://www.tulips.tsukuba.ac.jp/dspace/handle/2241/104874
  • Peer Reviewed
• [Journal Article] Channel initiation by surface and subsurface flows in a steep catchment of the Akaishi Mountains, Japan (2010)
  • Author(s): Fumitoshi IMAIZUMI, Tsuyoshi HATTANJI, Yuichi S.HAYAKAWA
  • Journal Title: Geomorphology 115 Pages: 32-42
  • NAID: 120007138206
  • Peer Reviewed
• [Journal Article] 表層崩壊の無次元発生支配パラメータと崩壊機構 (2009)
  • Author(s): 今泉文寿, 眞板秀二, 宮本邦明
  • Journal Title: 砂防学会誌 Vol.62,No.2 Pages: 13-20
  • Peer Reviewed
• [Journal Article] 表層崩壊の無次元発生支配パラメータと崩壊機構 (2009)
  • Author(s): 今泉文寿, 眞板秀二, 宮本邦明
  • Journal Title: 砂防学会誌 62(2) Pages: 13-20
  • Peer Reviewed
• [Presentation] 山岳地での凍結融解による土砂生産量の計測手法の検討 (2009)
  • Author(s): 松田悟・今泉文寿・宮本邦明
  • Organizer: 日本森林学会中部支部
  • Place of Presentation: 名古屋大学(名古屋市)
  • Year and Date: 2009-10-10
• [Presentation] 降雨時における地下水位の変動と表層崩壊の発生に関する考察 (2009)
  • Author(s): 今泉文寿, 眞板秀二, 宮本邦明
  • Organizer: 平成21年度砂防学会研究発表会
  • Place of Presentation: 広島市
  • Year and Date: 2009-05-27
• [Presentation] 降雨時における地下水位の変動と表層崩壊の発生に関する考察 (2009)
  • Author(s): 今泉文寿・眞板秀二・宮本邦明
  • Organizer: 平成21年度砂防学会研究発表会
  • Place of Presentation: アステールプラザ(広島市)
  • Year and Date: 2009-05-27
• [Presentation] 山岳地での凍結融解による土砂生産量の計測手法の検討 (2009)
  • Author(s): 松田悟・今泉文寿
  • Organizer: 平成21年度砂防学会研究発表会
  • Place of Presentation: アステールプラザ(広島市)
  • Year and Date: 2009-05-27
• [Presentation] Estimation of sediment supply rate by freeze-thaw in a large mountainous area in Japan (2009)
  • Author(s): Fumitoshi IMAIZUMI, Kenlo N.NASAHARA, Daizo TSUTSUMIi, Masaharu FUJITA, Kuniaki MIYAMOTO
  • Organizer: EGU General Assembly 2009
  • Place of Presentation: AVC(オーストリア・ウィーン)
  • Year and Date: 2009-04-21
• [Presentation] Debris-flow behaviors in an steep mountainous torrent on Ohya landslid e, Japan (2008)
  • Author(s): Fumitoshi IMAIZUMI, Satos hi TSUCHIYA
  • Organizer: Fourth International Conference on Scour and Er osion 2008
  • Place of Presentation: 東京都千代田区
  • Year and Date: 2008-11-06
• [Presentation] 赤石山脈南部での流路形成過程に関する解析 (2008)
  • Author(s): 今泉文寿, 八反地剛, 早川裕一
  • Organizer: 日本地形学連合2008年秋季大会
  • Place of Presentation: 東京都世田谷区
  • Year and Date: 2008-10-19
• [Presentation] Shallow Landslide and Debris Flow Behavior and Linkages in Steep Terrain: Hydrogeomorphic Influences (2008)
  • Author(s): Roy C. Sidle, Fumitoshi IMAIZUMI
  • Organizer: 2008 Joint Annual Meeting GSA/SSSA/ASA/ CSSA/GCAGS /HGS
  • Place of Presentation: アメリカ合衆国テキサス州ヒューストン
  • Year and Date: 2008-10-08
• [Presentation] Effect of forest harvesting on hydrogeomorphic processes in steep terrai n of central Japan (2008)
  • Author(s): Fumitoshi IMAIZUMI, Roy C. SIDLE
  • Organizer: 2008 Joint Annual Meeting GSA/SSSA/ASA/CSSA/ GCAGS/HGS
  • Place of Presentation: アメリカ合衆国テキサス州ヒユーストン
  • Year and Date: 2008-10-08
• [Presentation] Shallow Landslide and Debris Flow Behavior and Linkages in Steep Te rrain: Hydrogeomorohic Influences (2008)
  • Author(s): Roy C. SIDLE, Fumitoshi I MAIZUMI
  • Organizer: 2008 Joint Annual Meeting GSA/SSSA/ASA/CSSA/ GCAGS/HGS
  • Place of Presentation: アメリカ合衆国テキサス州ヒユーストン
  • Year and Date: 2008-10-08
• [Presentation] 砂防に関する長期観測データを有効利用するためのデータベース作成・管理手法の開発 (2008)
  • Author(s): 今泉文寿, 奈佐原顕郎, 堤大三, 多田泰之
  • Organizer: 平成20年度砂防学会研究発表会
  • Place of Presentation: 北海道札幌市
  • Year and Date: 2008-05-14