2016 Fiscal Year Final Research Report
Experimental study on mechanical and hydraulic properties during lithfication of sediments and fault gouge
| Project/Area Number |
26870918
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Geology
Solid earth and planetary physics
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| Research Institution | Kyoto University (2016)
Japan Agency for Marine-Earth Science and Technology (2014-2015) |
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Principal Investigator |
Noda Hiroyuki 京都大学, 防災研究所, 准教授 (50619640)
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| Research Collaborator |
KATAYAMA Ikuo
TAKAHASHI Miki
OKAZAKI Keishi
SHIBAZAKI Bunichiro
SAWAI michiyo
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Keywords | 岩石実験 / 脆性塑性遷移 / 地震サイクル |
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| Outline of Final Research Achievements |
Consolidation and deformation experiments of quartz powder under hydrothermal conditions and friction experiments of NaCl with high pressure, high temperature, and high pore pressure were conducted. In particular, new data for the effect of pore fluid pressure in brittle-plastic transition contradicted conventional notion. A new theory explaining the data was proposed, promoting understanding of the effective stress law. A new method to correct mechanical data during deformation experiments by removing resistance of the actuator and O-rings was developed. This enables us to obtain mechanical data of better quality in future. During the present plan, a new microphysical model for pressure solution creep was proposed by a group in Netherlands. This model was regularized and successfully implemented in earthquake sequence simulations.
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| Free Research Field |
断層力学
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