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： 24巻 年： 1992年 頁： 474-478頁 著者（和）： 緒方　雄二，　勝山　邦久，　斎藤　修二，　茂住　洋史，　新宮　和喜，　堀之口　賢姶 タイトル（和）： 弾性波速度計測による鉱柱の二次元調査 抄録（和）：
- キーワード（和）： - 掲載雑誌（英）： PROCEEDINGS OF THE SYMPOSIUM ON ROCK MECHANICS 著者（英）： Yuji OGATA, Kunihisa KATSUYAMA, Shuji SAITO, Hiroshi MOZUMI, Kazuki SHINGU, Kenji HORINOKUCHI タイトル（英）： INVESTIGATION OF PILLARS USING SEISMIC VELOCITY AND TOMOGRAPHY 抄録（英）：
It is necessary to foresee the geological conditions of pillars in oder to excavate safely and efficiently. Four pillars in the N0. 9 ore body and one virgin ground near the pillars in KAMIOKA TOCHIBORA mine were investigated using seismic velocity and tomography. Results of seismic velocity in the pillars, No.11 pillar is the lowest seismic velocity in the four pillars and N0. 22 is the highest seismic velocity. Results of seismic tomography, No.11 pillar consists of some low velocity elements under 4,000m/s and N0. 22 and N0. 28 pillars almost consist of high velocity elements of 4,5OO-5,500m/s but partly low velocity areas. No. 17 pillar consists of high velocity element of 4,5OO-5,500m/s. Virgin ground consists high velocity element of 5,000-5,500m/s. As the results of seismic velocity and tomography, No.11 pillar is assumed to be in the worst geological condition in the four pillars of N0. 9 ore body in KAMIOKA TOCHIBORA mine. キーワード（英）： - 記事区分： - 区分 　　　委員会論文集