3:15 PM - 3:30 PM
*Masayuki ISHIBASHI1, Eiji SASAO1, Makoto NAKAJIMA2, Hiroyuki ATSUMI2, Hironori ONOE1, Hiromitsu SAEGUSA1, Junichi KAWABATA2, Kazuhiko MASUMOTO2, Shoji SENO2, Keita IWANO2 (1.Japan Atomic Energy Agency, 2.Kajima Corporation Technical Research Institute Rock Mechanics and Hydrogeology Group)