書誌事項
- タイトル別名
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- ANISOTROPY OF GRANITIC ROCK IN THE INLAND SEA IN WESTERN JAPAN
抄録
In situ orientation of the three planes of anisotropy in granite was at first investigated with the empirical aid of quarrymen at twenty-six quarries in the Inland Sea area in Western Japan. The azimuthal variation of the sound velocity was measured and the feature of the cracks was investigated on thin sections of the rock with an optical microscope. The defects were classified into open cracks, healed cracks and other defects for every rock. In the specimens from almost all of the quarries, the rift plane consists of open cracks within the quartz's grains and the strikes are nearly parallel to the horizontal plane. Thus the grain plane and the hardway plane is vertical. The grain plane consists of open cracks and/or healed ones within the quartz, while the hardway plane consists of a few cracks within the quartz but often consists of healed cracks within the feldspar grain.
収録刊行物
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- 土木学会論文集
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土木学会論文集 1987 (382), 45-53, 1987-06-20
公益社団法人 土木学会
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詳細情報 詳細情報について
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- CRID
- 1390001205602347392
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- NII論文ID
- 130003799440
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- ISSN
- 18827187
- 02897806
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- データソース種別
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- JaLC
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可