掲載雑誌（和）： 岩盤力学に関するシンポジウム講演論文集 Vol： 21巻 年： 1989年 頁： 146-150頁 著者（和）： 菅原　捷，　神尾　重雄，　斎藤　秀樹，　島　裕雅 タイトル（和）： 岩盤調査におけるジオトモグラフィーの適用性の検討 抄録（和）：
- キーワード（和）： - 掲載雑誌（英）： PROCEEDINGS OF THE SYMPOSIUM ON ROCK MECHANICS 著者（英）： Hayashi SUGAWARA, Shigeo KANWO, Hideki SAITO, Hiromasa SHIMA タイトル（英）： A STUDY ON GEOTOMOGRAPHY TECHNIQUES APPLIED TO ROCK INVESTIGATIONS 抄録（英）：
Seismic and resistivity tomography techniques are examined to apply to the geological investigation at a dam site. The previous geological investigations at the site revealed that the foundation rock consisted of andesite covered with gravels of about 30m in thickness, and that the andesite layer probably contained alteration zones in places. The seismic tomography result indicates that there exist the low velocity zones in the andesite layer. They are supposed to correspond to alteration zones. The resistivity tomography result indicates that the andesite layer has extremely low resistivity which is believed to be caused by alteration. From these results, we are convinced that each of these two ways of geotomography is effective to detect subsurface geological structure and to determine the distribution of physical properties of rock. In addition, the results of both seismic and resistivity tomography were interpreted together. The combination of these two ways of geotomography could provide more detailed geotechnical conditions of the ground with accuracy. キーワード（英）： - 記事区分： - 区分 　　　委員会論文集