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: 22巻 年: 1990年 頁: 71-75頁 著者(和): 多賀 直大, 石山 宏二, 平田 篤夫, 稲葉 力 タイトル(和): 関越トンネルにおけるAE特性 抄録(和):
- キーワード(和): - 掲載雑誌(英): PROCEEDINGS OF THE SYMPOSIUM ON ROCK MECHANICS 著者(英): Naoharu TAGA, Koji ISHIYAMA, Atsuo HIRATA, Tsutomu INABA タイトル(英): CHARACTERISTIC OF DISTRIBUTION OF MICROSEISMIC EVENTS IN EXCAVATION OF THE KAN-ETSU TUNNEL 抄録(英):
The Kan-etsu tunnel is located along the Kan-etsu expressway near the Joetsu border and is now under constructed through the Tanigawa Range. The rock burst and strong rock noise occured in excavation of this tunnel, especially at the section between 4,480m and 4,860m from Yuzawa side. We have already carried out acoustic emission monitoring. Then we analyze the microseismic energy release due to face advance and the distribution of the epicenters. It is discussed that microseismicity in this section is attributable to the stress concentration due to face advance and that the fractures play an important role in determining the local field stress. キーワード(英): - 記事区分 - 区分    委員会論文集