Evaluation of rock mass behavior under the existence of multi-phase fluids by using ultra-high resolution fiber optic strain sensors
| Project/Area Number |
26249138
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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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 engineering
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| Research Institution | The University of Tokyo |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
山本 肇 大成建設株式会社技術センター, 土木技術研究所 地盤・岩盤研究室, チームリーダー (10417090)
愛知 正温 東京大学, 新領域創成科学研究科, 講師 (40645917)
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| Research Collaborator |
HIGUCHI Kohei 東京大学, 大学院新領域創成科学研究科, 特任研究員
MOGI Katsuro 東京大学, 大学院工学系研究科, 技術専門職員
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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 |
¥35,490,000 (Direct Cost: ¥27,300,000、Indirect Cost: ¥8,190,000)
Fiscal Year 2016: ¥6,760,000 (Direct Cost: ¥5,200,000、Indirect Cost: ¥1,560,000)
Fiscal Year 2015: ¥12,090,000 (Direct Cost: ¥9,300,000、Indirect Cost: ¥2,790,000)
Fiscal Year 2014: ¥16,640,000 (Direct Cost: ¥12,800,000、Indirect Cost: ¥3,840,000)
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| Keywords | 地殻工学 / 光ファイバ歪センサ / 室内実験 / 多相流れ / 地殻変動計測 |
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| Outline of Final Research Achievements |
The behavior of rock masses under the existence of multi-phase fluid was analyzed through the usage of newly developed ultra-high resolution fiber optic strain sensors. We conducted both in-situ measurements and laboratory experiments for this study. Scale/time dependent rock mass behavior was analyzed through the long-term measurements of in-situ strains in the vault, and characteristic rock deformation behavior under the extremely slow non-wetting phase fluid movement was discovered by laboratory experiments.
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Report
(4 results)
Research Products
(20 results)
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[Journal Article] Quantitative study on experimentally observed poroelastic behavior of Berea sandstone in two-phase fluid system2014
Author(s)
Goto, H., Aichi, M., Tokunaga, T., Yamamoto, H., Ogawa, T., Aoki, T.
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Journal Title
Journal of Geophysical Research Solid Earth
Volume: 119
Issue: 8
Pages: 6211-6228
DOI
Related Report
Peer Reviewed
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[Presentation] Comparisons of long-term trends of crustal strain and its principal axes measured by quartz tube extensometers and GNSS in southwestern Miura Peninsula, Japan2016
Author(s)
Higuchi, K., Tokunaga, T., Kato, T., Aichi, M. and Shimada, S.
Organizer
American Geophysical Union, Fall Meeting
Place of Presentation
San Fransisco, USA
Year and Date
2016-12-12
Related Report
Int'l Joint Research
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[Presentation] 0.1-nano-strain resolution fiber-optic sensor for quasi-static strain measurement with 1 kS/s sampling rate2015
Author(s)
Chen, J., Liu, Q., Fan, X., Ma, L., Du, J., Tokunaga, T. and He, Z.
Organizer
24th International Conference on Optical Fibre Sensors
Place of Presentation
Curitiba, Brazil
Year and Date
2015-09-28
Related Report
Int'l Joint Research
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