掲載雑誌（和）： 日本地震工学シンポジウム講演集 Vol： 6巻 年： 1982年 頁： 57-64頁 著者（和）： - タイトル（和）： - 抄録（和）：
- キーワード（和）： - 掲載雑誌（英）： PROCEEDINGS OF JAPAN EARTHQUAKE ENGINEERING SYMPOSIUM 著者（英）： Fumio AMAIKE, Shigeru KASUGA, Tomotaka IWATA, Yoshimasa KOBAYASHI, Kiyoyuki KISIMOTO, Kojiro IRIKURA, タイトル（英）： ESTIMATION OF BASE ROCK STRUCTURE USING REFLECTED WAVES 抄録（英）：
In earthquake engineering, it is important to determine underground structure up to the basement. To estimate the relatively deep underground structure, seismic exploration which uses explosion as a source has ordinarily been made. In a southeastern part of Kyoto basin, we could observe the reflected waves from the basement which existed some hundred meters under the surface by using air gun as a source and signalenhancement technique by stacking. We found that both the velocity up to the basement and the depth of the basement were greater than those given by Kitsunezaki et al. (1971). Moreover, we found that it was useful to use reflected waves from sharp boundary, such as a basement, because it was easy to observe them at far distances where surface waves were not disturbing. Synthetic seismograms also support this postulate. キーワード（英）： - 記事区分： - 区分 　　　委員会論文集