| Project/Area Number |
22560805
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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 |
Earth system and resources enginnering
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| Research Institution | Hokkaido University |
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Principal Investigator |
KODAMA Jun-ichi 北海道大学, 大学院・工学研究院, 准教授 (70241411)
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| Co-Investigator(Kenkyū-buntansha) |
KODAMA Nariaki 函館工業高等専門学校, 助教 (60435386)
FUJII Yoshiaki 北海道大学, 大学院・工学研究院, 准教授 (70192309)
NAKAMURA Dai 北見工業大学, 工学部, 准教授 (90301978)
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| Project Period (FY) |
2010 – 2012
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| Project Status |
Completed (Fiscal Year 2012)
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| Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2012: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2011: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2010: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
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| Keywords | 地殻工学 / 凍結 / 間隙氷 / クリープ変形 / クリープ寿命 / 寿命予測 / 岩石 / 凝灰岩 / 絶対強度 / クリープ試験 / サブゼロ温度領域 / 凍結状態 / 強度 / 破壊プロセス / 一軸圧縮試験 / 圧裂引張試験 / 岩質材料 |
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| Research Abstract |
Concept of time-independent strength under various environments was proposed.Then, impact of pore ice on creep deformation and creep life of rock was investigatedunder sub-zero temperature. Time time-independent strength could not be found onShikotsu welded tuff. However, it was found that creep life of water saturatedspecimen was shorter than that of dry specimen at low stress level.
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