2010 Fiscal Year Final Research Report
A study on the ground deformation of ocean sediments during methane hydrate dissociation
| Project/Area Number |
22760356
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Geotechnical engineering
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| Research Institution | Kyoto University |
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Principal Investigator |
KIMOTO Sayuri 京都大学, 大学院・工学研究科, 准教授 (70362457)
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| Project Period (FY) |
2010 – 2011
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| Keywords | メタンハイドレート / 地盤力学 |
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| Research Abstract |
Gas production process during hydrate dissociation was simulated by using a chemo-thermo-mechanically coupled analysis method in the present study. Especially, the mechanical behavior such as, the ground deformation, the flow of fluids, and the heat transfer was investigated.
Firstly, laboratory test was simulated using the proposed numerical method. From the comparison between experiments and simulations, the proposed model can well reproduced the temperature change and the displacement during the dissociation.
Secondly, the simulation was conducted for the model with seabed ground with hydrate bearing layer in order to investigate the mechanical behavior during the production process. The results show that the deformation continues after the dissociation process and localizes around the ground surface.
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[Journal Article] A chemo-thermo-mechanically coupled analysis of hydrate bearing sediments2011
Author(s)
Kimoto, S., Oka, F., Miki, Y., Fukuda, T., Iwai, H., Kitano, T.
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Journal Title
The 14th Asian Regional Conference on Soil Mechanics and Geotechnical Engineering
Volume: (CD-ROM)
Pages: 論文番号TC103-5
Peer Reviewed
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