| Project/Area Number |
19560495
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Geotechnical engineering
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| Research Institution | Tohoku Gakuin University |
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Principal Investigator |
TOBITA Yoshio Tohoku Gakuin University, 工学部, 教授 (40124606)
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| Co-Investigator(Kenkyū-buntansha) |
YOSHIDA Nozomu 東北学院大学, 工学部, 教授 (50405891)
YAMAGUCHI Akira 東北学院大学, 工学部, 准教授 (30337191)
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| Project Period (FY) |
2007 – 2009
|
| Project Status |
Completed (Fiscal Year 2009)
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| Budget Amount *help |
¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2009: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2008: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2007: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
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| Keywords | 地盤流動 / 構成モデル / 安定条件 / 粒状体 / 弾塑性構成モデル / 流動中の分離現象 / 液状化後の流動 / 安定・不安定挙動 / 浸透流 / ダイレイタンシー / 液状化現象 / 砂の弾塑性モデル / 流動現象 / 安息角の実験 / 再液状化 / クイックサンド / 砂の構造 / 安定性 / 不安定流動 / 液状化 / 状態変数 |
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| Research Abstract |
There are many flow phenomena in geotechnical engineerlng ; e.g.mudflow during and after strong rainfall, flow slide owing to the liquefaction after strong earthquake motion, flow slide in the seabed. These phenomena have not been investigated in the engineering to a sufficient level, which had nothing to do with the design of structures. The flow problem of geo-materials have been studied with the hydraulic-mechanics approach, the initiation and cease condition of flow, requiring the solid mechanics approach, have not been discussed to a sufficient level. The study presented in this paper have shown the importance of internal fabrics and the creation of fabric called force chains on the initiation and cease conditions of flow phenomena.
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