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： 23巻 年： 1991年 頁： 11-15頁 著者（和）： 谷本　親迫，　岸田　潔，　池内　正明，　岡村　正典 タイトル（和）： 弾性周波数特性とジオトモグラフィーに関する基礎的研究 抄録（和）：
- キーワード（和）： - 掲載雑誌（英）： PROCEEDINGS OF THE SYMPOSIUM ON ROCK MECHANICS 著者（英）： Chikaoa TANIMOTO, Kiyoshi KISHIDA, Masaaki IKEUCHI, Masanori OKAMURA タイトル（英）： FUNDAMENTAL STUDY ON ATTENUATION TOMOGRAPHY AND DEPENDENCY OF FREQUENCY 抄録（英）：
The seismic tomography technique has been recently developed in knowing the outline of a geological structure. The paper describes a possibility to find out the distributions of joint density and aperture in an objective area in association with the travel time tomography and the fundamental experiments which the authors have been carrying out recently. Based on the idea that the velocity of seismic wave or its change does not directly mean any physical property without knowing the mechanical behaviour of a single rock joint and multiple joints in many cases, the correlations between joint aperture, contact pressure, joint frequency, asperity, infilling material, propagating wave velocity and amplitude have been experimentally investigated through various specimens including artificial and natural joints in the wide range of contact pressure. It is suggested that, if damping effects in a continuous body and discontinuities can be separated by the fundamental studies, the so-called seismic attenuation tomography provides the distribution of joint density and the variation of respective joint apertures. キーワード（英）： - 記事区分： - 区分 　　　委員会論文集