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
スポンサーリンク
概要
- 論文の詳細を見る
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 density, orientation, and aspect ratio of microcracks, and also the information of fluid within them. When the microcracks within a rock are 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 obtaining 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.
- 公益社団法人 土木学会の論文
公益社団法人 土木学会 | 論文
- Design and Construction Process of Hakusui Dam Considering from Group of Construction Photographs
- Organization-Focused Consideration of Bridge Diffusion Strategy of the Hennebique Company
- A Study on the Technical Transfer of the Hennebique Co. Analyzing the Design Process of the Risorgimento Bridge
- Characteristics of Mud Flow Caused by Water Flow and Its Hydraulic Modelling
- タイトル無し