Modeling Method for Cracks in Rocks based on the Fractal Structure of the AE Source Distributlon.
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- ITAKURA Ken–ichi
- Muroran Institute of Technology, 27–1 Mizumoto, Muroran 050–8585
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- WATANABE Yoshinori
- Graduate Student, Muroran Institute of Technology
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- SATO Kazuhiko
- Muroran Institute of Technology, 27–1 Mizumoto, Muroran 050–8585
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- GOTO Tatsuhiko
- Muroran Institute of Technology, 27–1 Mizumoto, Muroran 050–8585
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- KODAMA Jun–ichi
- Muroran Institute of Technology, 27–1 Mizumoto, Muroran 050–8585
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- YOSHIDA Yutaka
- Muroran Institute of Technology, 27–1 Mizumoto, Muroran 050–8585
Bibliographic Information
- Other Title
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- AE震源分布のフラクタル構造に基づいた岩石内き裂系のモデル化に関する研究
- AE シンゲン ブンプ ノ フラクタル コウゾウ ニ モトズイタ ガンセキ ナ
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Abstract
In underground construction it is important to obtain a discontinuities' model of rocks for simulations to evaluate rock stability around the working space and fluid flow in the rocks. In this study, an uniaxial compression test on a prism-shaped specimen of granite was conducted to develop a more feasible modeling method of cracks in rocks based on AE (acoustic emission) monitoring data and the fractal properties of the AE source distribution. 1. From this experiment, it was found that the AE source distribution was fractal and that the relationship between amplitude and frequency of AE was also fractal. 2. Crack distributions in the specimen and on the surface were both fractal. 3. A 3-D crack distribution model was constructed using AE monitoring data obtained from the experiment. In this model, the crack was described by a disk, and the fractal dimension of sectional lines that appeared on the surface of a specimen was adjusted to coincide with the dimension of lineaments extracted from a real crack image of the same surface of the specimen by correcting the AE parameters. That is, the relative AE energy for each event were altered iteratively until both fractal dimensions were matched. It is thought that this new modeling method for cracks in rocks can be directly applied to field studies of underground construction in the future.
Journal
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- Shigen-to-Sozai
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Shigen-to-Sozai 114 (12), 918-924, 1998
The Mining and Materials Processing Institute of Japan
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Details 詳細情報について
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- CRID
- 1390282680993939328
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- NII Article ID
- 10002468725
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- NII Book ID
- AN10062646
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- ISSN
- 18806244
- 09161740
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- NDL BIB ID
- 4614130
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed