書誌事項
- タイトル別名
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- Experimental Investigation into the Kaiser Effect in Pore-water-pressured Sandstone
- カンゲキ スイアツ オ ウケタ サガン ノ カイザー コウカ ニ カンスル ジッケンテキ ケンキュウ
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抄録
In-situ stress measurement using the Kaiser effect of AE (Acoustic Emission) was adapted to investigate the underground stress conditions. Most rocks are porous to some degree. If the pores of in-situ rock contain pore water, rocks (in-situ rock mass) are subjected to in-situ stress and furthermore pore water pressure. However the influence of pore water pressure on the Kaiser effect has not been studied. In this study, we performed experiments to clarify the influence of pore water pressure on the Kaiser effect using sandstone. Firstly, uniaxial compressive stress was re-loaded after triaxial compressive pre-loading with several pore water pressures. Secondly, triaxial compressive re-loading was performed under different several pore water pressures after triaxial compressive pre-loading with pore water pressure. Two points having rapidly increasing cumulative AE event count were observed. The two stresses of 1st and 2nd Kaiser effect points were then compared with pre-effective axial stress and pre-differential stress. The estimated stresses were very close to those pre-stresses, and not influenced by pore water pressure in pre-loading and re-loading.
収録刊行物
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- 実験力学
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実験力学 7 (2), 108-113, 2007
日本実験力学会
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詳細情報 詳細情報について
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- CRID
- 1390282680167417600
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- NII論文ID
- 130004489917
- 10019742591
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- NII書誌ID
- AA11822914
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- ISSN
- 18844219
- 13464930
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- NDL書誌ID
- 8885805
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可