Deformation and failure mode of piles under non-liner condition during liquefaction and laterally spreading

• Project/Area Number: 18760417
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Building structures/materials
• Research Institution: Tokyo Institute of Technology
• Principal Investigator: SUZUKI Hiroko Tokyo Institute of Technology, 大学院・理工学研究科, 助教 (60401527)
• Project Period (FY): 2006 – 2008
• Project Status: Completed (Fiscal Year 2008)
• Budget Amount: ¥3,640,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥240,000); Fiscal Year 2008: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000); Fiscal Year 2007: ¥1,200,000 (Direct Cost: ¥1,200,000); Fiscal Year 2006: ¥1,400,000 (Direct Cost: ¥1,400,000)
• Keywords: 地震 / 液状化 / 側方流動 / 杭基礎 / 耐震設計 / 破壊

Research Abstract

地盤-杭-構造物系振動台実験結果に基づき, 地震時の異なる条件下で、杭の曲げモーメント、せん断力、軸力に影響を及ぼす要因を検討した。また, 液状化・側方流動時を含む非線形挙動時の地盤変位の増大が杭に作用する荷重に与える影響を評価し, 杭応力再現のための数値解析を実施するとともに、地盤の大変形時における杭の形状の違いによる変形・破壊モードの違いを明らかにした.

Research Products

• [Journal Article] Effects of ground displacement on piles with different strength during laterally spreading in centrifuge test (2009)
  • Author(s): Hiroko Suzuki, Kohji Tokimatsu and Ross W. Boulanger
  • Journal Title: Proc. of International Conference on Performance-Based Design in Earthquake Geotechnical Engineering, 2009 (accepted)
• [Journal Article] Effects of ground displacement on piles with different strength during laterally spreading in centrifuge test (2009)
  • Author(s): Hiroko Suzuki and Kohji Tokimatsu
  • Journal Title: Proc. of Sixth International Conference on Urban Earthquake Engineering Pages: 549-554
• [Journal Article] Effects of ground displacement on piles with different strengthduring laterally spreading in centrifuge test (2009)
  • Author(s): Hiroko Suzuki and Kohji Tokimatsu
  • Journal Title: Proc. of Sixth International Conference on Urban Earthquake Engineering Pages: 549-554
• [Journal Article] Effects of shear strain increase on p-y spring for pile foundations in non-liquefied ground (2008)
  • Author(s): Hiroko Suzuki and Kohji Tokimatsu
  • Journal Title: Proc. of Fifth International Conference on Urban Earthquake Engineering Pages: 347-351
• [Journal Article] Horizontal load distribution within pile group in liquefied ground (2007)
  • Author(s): Hiroko Suzuki and Kohji Tokimatsu
  • Journal Title: Proc. of 4th International Conference on Earthquake Geotechnical Engineering Pages: 8-8
• [Journal Article] Soil-pile-structure interaction during multi-dimensional shaking through physical model tests using E-Defense facility (2007)
  • Author(s): Kohji Tokimatsu, Hiroko Suzuki, Masayoshi Sato and Kentao Tabata
  • Journal Title: Proc. of Fourth International Conference on Urban Earthquake Engineering Pages: 841-848
• [Journal Article] Soil-pile-structure interaction during multi-dimensional shaking through physical model tests using E-Defense facility (2007)
  • Author(s): Kohji Tokimatsu, Hiroko Suzuki, Masayoshi Sato, Kentao Tabata
  • Journal Title: Proc. of Fourth International Conference on Urban Earthquake Engineering Pages: 841-848
• [Journal Article] Horizontal load distribution within pile group in liquefied ground (2007)
  • Author(s): Hiroko Suzuki, Kohji Tokimatsu
  • Journal Title: Proc. of 4th International Conference on Earthquake Geotechnical Engineering (発表決定)
• [Journal Article] 入力地震動が乾燥及び液状化地盤と杭・構造物の動的相互作用に与える影響 (2007)
  • Author(s): 杉本良介, 鈴木比呂子, 時松孝次
  • Journal Title: 日本建築学会2007年度大会学術講演梗概集 (発表決定)
• [Journal Article] 乾燥地盤および飽和地盤における群杭内の水平荷重分布に関する検討 (2007)
  • Author(s): 鈴木比呂子, 時松孝次, 奥村豪悠
  • Journal Title: 第42回地盤工学研究発表会発表講演集 (発表決定)
• [Presentation] 入力地震動が地盤と杭基礎構造物の動的相互作用に与える影響 (2008)
  • Author(s): 杉本良介, 蓑和健太郎, 鈴木比呂子, 時松孝次
  • Organizer: 2008年度日本建築学会大会
  • Place of Presentation: 広島
  • Year and Date: 2008-09-20
• [Presentation] 入力地震動が地盤-杭基礎構造物相互作用に与える影響の実験的検討 (2008)
  • Author(s): 杉本良介, 時松孝次, 鈴木比呂子, 蓑和健太郎
  • Organizer: 第43回地盤工学研究発表会
  • Place of Presentation: 広島
  • Year and Date: 2008-07-10
• [Presentation] 入力地震動が乾燥及び液状化地盤と杭・構造物の動的相互作用に与える影響 (2007)
  • Author(s): 杉本良介, 鈴木比呂子, 時松孝次
  • Organizer: 日本建築学会2007年度大会
  • Place of Presentation: 福岡
  • Year and Date: 2007-08-31
• [Presentation] 乾燥地盤および飽和地盤における群杭内の水平荷重分布に関する検討 (2007)
  • Author(s): 鈴木比呂子, 時松孝次, 奥村豪悠
  • Organizer: 第42回地盤工学研究発表会
  • Place of Presentation: 名古屋
  • Year and Date: 2007-07-05
• [Presentation] 側方流動地盤遠心載荷実験における杭の耐力がその変形・破壊モードに与える影響 (2007)
  • Author(s): 時松孝次, 鈴木比呂子, 杉本良介, 浜本聖
  • Organizer: 第42回地盤工学研究発表会
  • Place of Presentation: 名古屋
  • Year and Date: 2007-07-05
• [Presentation] 入力地震動が液状化過程での地盤と杭・構造物の動的相互作用に与える影響 (2007)
  • Author(s): 杉本良介, 鈴木比呂子, 時松孝次
  • Organizer: 第42回地盤工学研究発表会
  • Place of Presentation: 名古屋
  • Year and Date: 2007-07-04