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- T Shiotani
- Technological Research Institute, Tobishima Corporation 1 Researcher , , 5472 Kimagase, Sekiyado, Higashi-katsushika, Chiba270-0222, Japan .
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- M Ohtsu
- Kumamoto University 2 Professor , Department of Civil Engineering and Architecture, , 2-39-1 Kurokami, Kumamoto860-8555, Japan .
書誌事項
- 公開日
- 1999-01-01
- DOI
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- 10.1520/stp15787s
- 公開者
- ASTM International100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959
説明
<jats:p>Slope failure occurs transiently due to the brittle nature of failure, of which mechanisms are dependent greatly on the ground properties. Because the failure often produces large-scale damage, techniques for predicting slope failure are in urgent demand. In the present paper, the applicability of AE to the prediction of slope failure is discussed. Firstly, characteristics of AE wave attenuation in the ground are examined. Efficient wave-guide materials, which enable us to detect AE waves generated in the ground with good sensitivity, are studied. Secondly, in order to estimate the failure process inside the ground, a new procedure is proposed to determine the b-value in real-time from the peak-amplitude distribution of acquired AE waveforms. Finally, curve fitting techniques such as graphical analysis and the rate process analysis are applied to AE activity to predict the slope-failure time.</jats:p>
収録刊行物
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- Acoustic Emission: Standards and Technology Update
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Acoustic Emission: Standards and Technology Update 156-172, 1999-01-01
ASTM International100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959