掲載雑誌（和）： トンネル工学研究発表会論文・報告集 Vol： 2巻 年： 1992年 頁： 209-214頁 著者（和）： 玉井　昭雄，白旗　秀紀，永久　和正 タイトル（和）： 制御発破の効果と岩盤への影響度に関する調査研究 抄録（和）：
- キーワード（和）： - 掲載雑誌（英）： PROCEEDINGS OF TUNNEL ENGINEERING, JSCE 著者（英）： Akio TAMAI, Hideki SHIRAHATA, Kazumasa NAGAHISA タイトル（英）： EFFECT OF CONTROLLED BLASTING AND THE EVALUATION OF THE INFLUENCE ON ROCK MASS AROUND TUNNEL 抄録（英）：
Controlled blasting is generally used for producing a smooth final profile, a minimum of overbreak and a minimum of stressing or fracturing of the remaining rock. It is, however, difficult to evaluate the damage to the rock outside the blasting contour. A series of in-situ tests were conducted in discontinuous rock to investigate the influence on the rock by blasting. According to the test results, it is shown that the effect on rock mass strongly depends on blasting methods. It is also revealed that the physical properties of the damaged rock can be estimated quantitatively by the seismic velocities measured in a borehole. キーワード（英）： - 記事区分： - 区分 　　　委員会論文集