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| 講演名 | 2007-10-26 10:00 Measurements of micro-electric potential and acoustic emission accompanied with specimen failure in uniaxial compressive test ○Seong-Jun Cho（KIGAM）・Jong-Wook Kim（KIGAM/Chonbuk Nat'l Univ.）・Sam-Gyu Park（KIGAM）・Young-Soo Song（Chonbuk Nat'l Univ.）・Nak-Hun Sung・Jung-Ho Kim（KIGAM）  SANE2007-72 |
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| 抄録 | （和） | 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. |
| （英） | 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. |
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| キーワード | （和） | Micro-electric potential / Acoustic emission / SP monitoring / / / / / |
| （英） | Micro-electric potential / Acoustic emission / SP monitoring / / / / / | |
| 文献情報 | 信学技報, vol. 107, no. 277, SANE2007-72, pp. 59-60, 2007年10月. | |
| 資料番号 | SANE2007-72 | |
| 発行日 | 2007-10-18 (SANE) | |
| ISSN | Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 | |
| 著作権に ついて |
技術研究報告に掲載された論文の著作権は電子情報通信学会に帰属します．(許諾番号：10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) | |
| PDFダウンロード | SANE2007-72 |
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