掲載雑誌（和）：
土木学会論文集 III
巻：
-巻
号：
382/III-7号
頁：
83‐89頁
年：
1987年
月：
6月
著者（和）：
柳谷俊，寺田まこと
タイトル（和）：
P波とS波をつかった弾性波CTによる岩石内を浸潤する水の観察
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抄録（和）：
-
キーワード（和）：
-
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掲載雑誌（英）：
JOURNAL OF GEOTECHNICAL ENGINEERING
著者（英）：
-
タイトル（英）：
Water infiltration in rock observed by CT using P and S waves．
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抄録（英）：
Ultrasonic (seismic) computer tomography (CT) was applied to visualize water infiltration into dry granite and to characterize its presence. The ultrasonic waves carry the information of dencity, orientation, and aspect ratio of microcracks, and also the filled with water, the effective bulk modulus of a rock increases, and hence Vp increases. In contrast, Vs is scarcely affected by the presence of fluid. Attention was focused on obtaing the spatial distribution of both Vp and Vs simultaneously. As expected, the Vs maps show no change, although the Vp maps clearly show large changes caused by the permeating water. It is possible to determine the presence of water within microcracks only by simultaneous reconstruction of Vp and Vs.
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キーワード（英）：
computer tomography, ultrasonic CT, infiltration, Vp, Vs
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記事区分：
-
区分
論文集