| Project/Area Number |
26420477
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Geotechnical engineering
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| Research Institution | Iwate University |
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Principal Investigator |
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2016: ¥390,000 (Direct Cost: ¥300,000、Indirect Cost: ¥90,000)
Fiscal Year 2015: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2014: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
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| Keywords | 岩石－間隙水系 / 間隙構造 / 熱拡散率 / 極低温 / 任意加熱法 / 粒子分散系複合材料 / 凍結岩石 / 力学物性 / 岩石―間隙水系 |
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| Outline of Final Research Achievements |
In this study, we examined the effects of pore structure on the thermal diffusivity of water-saturated rock under freezing process and obtained the following findings. The effect of pore water on the thermal diffusivity of water-saturated rocks is different in “water in clay minerals” and “water between mineral particles.” In other words, the freezing of water between mineral particles increases the diffusivity, whereas the water in clay minerals (i.e., adsorbed water, interlayer water, and constitution water) does not affect the diffusivity at all. Furthermore, we examined the presence/absence of freezing of water in clay minerals under low temperature. As a result, it could not get a clear conclusion.
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