| Project/Area Number |
21740332
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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 |
Solid earth and planetary physics
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| Research Institution | Ritsumeikan University |
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Principal Investigator |
KAWAKATA Hironori Ritsumeikan University, 理工学部, 准教授 (80346056)
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| Project Period (FY) |
2009 – 2010
|
| Project Status |
Completed (Fiscal Year 2010)
|
| Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2010: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2009: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
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| Keywords | 岩石破壊試験 / アコースティック=エミッション / 広帯域計測 / 破壊スケーリング / 連続集録 |
|---|
| Research Abstract |
Micro-fracture occurs accompanied by acoustic emission (AE) during a rock fracture experiment. Owing to a high activity of AE, clear increasing phase has been observed just before the main fracture, which attracts the attention in the view point of precursory phenomena. In this study, using waveforms from broadband continuous recording of AE during rock fracture experiments and high frequency recording of ultra-micro seismic events in mine, it is suggested that AE and mining induced ultra-micro seismic events follow the same scaling law for natural earthquakes.
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