| Presentation | 2007-10-26 Measurement of micro-electric potentials and acoustic emissions accompanied with specimen failure in uniaxial compressive test Seong-Jun CHO, Jong-Wook Kim, Sam-Gyu Park, Young-Soo Song, Nak-Hun Sung, Jung-Ho Kim, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | As a part of basic studies on monitoring of landslides and slope stability using SP measurements, micro-electric potentials and acoustic emission of rock samples were measured, which were accompanied with the rock failure by a uniaxial loading test. Rock samples of granite, limestone, sandstone and mortar samples were tested. Micro-electric potentials were detected in all saturated samples and the strength of them increased as the loading force increased. We found that the bigger micro-electric potentials were observed at the electrodes near the crack surface of rock samples. The measurement of AE gave similar results where crack locations to be calculated from AE signal corresponded to the crack positions to be observed at the surface of the sample. This is a encouraging result that SP monitoring can be applied to predicting landslide or to estimating a collapsed position combining with monitoring of acoustic emissions. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Micro-electric potential / Acoustic emission (AE) / SP monitoring |
| Paper # | SANE2007-72 |
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| Conference Information | |
| Committee | SANE |
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| Conference Date | 2007/10/18(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Space, Aeronautical and Navigational Electronics (SANE) |
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| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Measurement of micro-electric potentials and acoustic emissions accompanied with specimen failure in uniaxial compressive test |
| Sub Title (in English) | |
| Keyword(1) | Micro-electric potential |
| Keyword(2) | Acoustic emission (AE) |
| Keyword(3) | SP monitoring |
| 1st Author's Name | Seong-Jun CHO |
| 1st Author's Affiliation | Engineering Geophysics Group, Korea Institute of Geoscience & Mineral Resources() |
| 2nd Author's Name | Jong-Wook Kim |
| 2nd Author's Affiliation | Engineering Geophysics Group, Korea Institute of Geoscience & Mineral Resources:Department of Mineral Resources & Energy Engineering, Chonbuk National University |
| 3rd Author's Name | Sam-Gyu Park |
| 3rd Author's Affiliation | Engineering Geophysics Group, Korea Institute of Geoscience & Mineral Resources |
| 4th Author's Name | Young-Soo Song |
| 4th Author's Affiliation | Department of Mineral Resources & Energy Engineering, Chonbuk National University |
| 5th Author's Name | Nak-Hun Sung |
| 5th Author's Affiliation | Engineering Geophysics Group, Korea Institute of Geoscience & Mineral Resources |
| 6th Author's Name | Jung-Ho Kim |
| 6th Author's Affiliation | Engineering Geophysics Group, Korea Institute of Geoscience & Mineral Resources |
| Date | 2007-10-26 |
| Paper # | SANE2007-72 |
| Volume (vol) | vol.107 |
| Number (no) | 277 |
| Page | pp.pp.- |
| #Pages | 2 |
| Date of Issue | |