| Project/Area Number |
09650557
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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 | Toyota College of Technology |
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Principal Investigator |
AKAGI Tomoyuki Civil Engineering, Toyota College of Technology Professor, 環境都市工学科, 教授 (90006685)
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| Co-Investigator(Kenkyū-buntansha) |
ITO Takashi Civil Engineering, Toyota College of Technology Associate Professor, 環境都市工学科, 助教授 (50193496)
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| Project Period (FY) |
1997 – 2000
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| Project Status |
Completed (Fiscal Year 2000)
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| Budget Amount *help |
¥2,900,000 (Direct Cost: ¥2,900,000)
Fiscal Year 2000: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 1999: ¥300,000 (Direct Cost: ¥300,000)
Fiscal Year 1998: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 1997: ¥1,400,000 (Direct Cost: ¥1,400,000)
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| Keywords | Rocks / Creep Failure / Long Term Strength / prediction / クリープ / 三軸クリープ試験 / 岩石の力学特性 / 岩石のクリープ特性 / 一軸クリープ試験 |
|---|
| Research Abstract |
The creep characteristic of soft rocks should be evaluated by considering the creep failure. If the creep failure is not likely to occur, creep characteristics can be expressed in terms of creep coefficients and delay time constants. we presented the some ways of estimating creep failure time. At the acceleration creep step, we applied a technique of Saito. Then, it considered about the relation between the prediction time and the prediction precision. At the secondary creep step, we examined about the effectiveness of the way of prediction based on the relation between the minimum strain rate and the creep failure time. Lastly, we examined about the possibility of prediction at the step in the early stages. In this paper, we consider the way of the precision which used these techniques of estimating creep failure time.
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