Development of prediction method and elucidation of seepage failure mechanism that occurs at the boundary between ground and irrigation facilitie

• Project/Area Number: 23580326
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Irrigation, drainage and rural engineering/Rural planning
• Research Institution: Mie University
• Principal Investigator: OKAJIMA Kenji 三重大学, 生物資源学研究科, 准教授 (90466805)
• Project Period (FY): 2011 – 2013
• Project Status: Completed (Fiscal Year 2013)
• Budget Amount: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000); Fiscal Year 2013: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000); Fiscal Year 2012: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000); Fiscal Year 2011: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
• Keywords: 浸透破壊 / 水利施設 / 頭首工 / 特殊堤 / 粒径 / パイピング / Terzaghi法

Research Abstract

This study is the study for the purpose of revealing the mechanism of seepage failure occurring at the boundary between the ground and irrigation facilities such as concrete embankments and headworks. The results of this study indicated that the previous seepage failure assessment methods are not possible to assess the effect of particle size of the soil around the irrigation facilities. We proposed a new assessment method that can evaluate the effect of particle size. We conducted the model tests that seepage failure occur at the ground with the movement of the irrigation facilities. This model tests indicated that it is necessary to consider the seepage as well as water pressure in the safety of the irrigation facilities. In addition, we have developed an analysis method that can be expressed at the same time the seepage failure of ground and movement of irrigation facilities.

Research Products

• [Journal Article] 堰基礎地盤の浸透破壊における粒径の影響 (2012)
  • Author(s): 岡島賢治,東谷和輝,石黒覚
  • Journal Title: 農業農村工学会論文集 Volume: 281 Pages: 63-69
  • NAID: 10031171452
  • Peer Reviewed
• [Journal Article] 水利施設と地盤のはざま (2012)
  • Author(s): 岡島賢治
  • Journal Title: 技術四季報東海の水土保全 Volume: 第6号 Pages: 14-19
• [Journal Article] 水利施設と地盤のはざま (2012)
  • Author(s): 岡島賢治
  • Journal Title: 技術四季報 東海の水土保全 Volume: 5 Pages: 9-16
• [Journal Article] Analyses of Piping under Foundation of Weirs in Different Ground Density by FEM, Proceedings of First International Conference on Geotechnique, Construction Materials and Environment (2011)
  • Author(s): K. Okajima
  • Journal Title: Refereed Pages: 141-145
• [Journal Article] 堰基礎地盤浸透破壊問題での浸透路長の有効性の再検討と弾塑性有限要素解析の適用 (2011)
  • Author(s): 岡島賢治，田中忠次，小松宜紘,飯田俊彰
  • Journal Title: 農業農村工学会論文集 Volume: 272 Pages: 21-29
  • NAID: 10028207969
  • Peer Reviewed
• [Presentation] 想定外の水圧を受けるコンクリート特殊堤防基礎の浸透流による強度低下 (2014)
  • Author(s): 岡島賢治、酒井俊典、林健二、石川昌幹、長谷川謙二、古根川竜夫、阪口和之、由井恒彦、片岡泰、中谷仁
  • Organizer: 地盤工学会
  • Place of Presentation: 北九州市国際会議場(福岡県北九州市)
  • Year and Date: 2014-07-15
• [Presentation] 想定外の水圧を受けるコンクリート特殊堤防基礎の浸透流による強度低下 (2014)
  • Author(s): 岡島賢治
  • Organizer: 地盤工学会
  • Place of Presentation: 北九州
• [Presentation] 堰基礎浸透破壊水頭差への粒径の影響 (2012)
  • Author(s): 岡島賢治、東谷和輝
  • Organizer: 地盤工学会
  • Place of Presentation: 八戸工業大学(青森県八戸市)
  • Year and Date: 2012-07-14
• [Presentation] 堰基礎浸透破壊水頭差への粒径の影響 (2012)
  • Author(s): 岡島賢治，東谷和輝
  • Organizer: 第47回地盤工学研究発表会
  • Place of Presentation: 八戸工業大学
• [Presentation] Analyses of Piping under Foundation of Weirs in Different Ground Density by FEM (2011)
  • Author(s): K.Okajima
  • Organizer: First International Conference on Geotechnique, Construction Materials and Environment
  • Place of Presentation: Mie, Japan