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： 25巻 年： 1993年 頁： 296-300頁 著者（和）： 今吉　隆，　斎藤　秀樹，　長田　正樹 タイトル（和）： 地震探査法によるトンネル切羽前方岩盤調査　−基礎実験結果− 抄録（和）：
- キーワード（和）： - 掲載雑誌（英）： PROCEEDINGS OF THE SYMPOSIUM ON ROCK MECHANICS 著者（英）： Takashi IMAYOSHI, Hideki SAITO, Masaki OSADA タイトル（英）： IN-TUNNEL SEISMIC SURVEY FOR PREDICTION AHEAD OF THE TUNNEL FACE -EXPERIMENTAL APPROACHES FOR THE REAL APPLICATION- 抄録（英）：
During the excavation phase a geological prognosis which contains detailed and quantitative information about abrupt changes in rock quality and formation boundaries lying ahe8d of the tunnel face is required by the tunnel engineer. We took notice of a geophysical exploration technique (Sattel et al. , 1992) for prediction method and carried out a fundamental experiment aiming at the real application of this technique. This experiment had two major aims from practical standpoints, that is - (1)confirmation of the reflections of the formation boundaries ahead of the face, (2)determination of the appropriate number and positions of sources and the appropriate number of receiver components. Through this experiment, we could detect some reflections of the formation boundaries ahead of the face and recognized the possibility of this technique for prediction method. On the other hand, we noticed that this technique had some subjects to settle - e.g. the method of reducing interface waves traveling along tunnel surface which masked the objective revelations. Finally, we are going to optimize this technique and continue to research for real application. キーワード（英）： - 記事区分： - 区分 　　　委員会論文集