*Shohei Nakashima¹, Takeshi Torichigai¹, Hiroaki Yamano¹, Toshinari Mukai¹, Shoji Seno¹, Takanori Kunimaru², Hikari Nishio² (1. KAJIMA, 2. Nuclear Waste Management Organization of Japan)

*Ema Yoshikawa¹, Yasutaka Watanabe¹, Shingo Yokoyama¹, Misato Shimbashi¹, Yoichi Yamamoto², Takahiro Goto² (1. Central Research Institute of Electric Power Industry, 2. Nuclear Waste Management Organization of Japan)

*Kira Iida¹, Shinichi Kanazawa², Rie Suzuki¹, Hayato Nakazima², Osamu Yoshino³ (1. Graduate School of Science and Technology,Niigata University, 2. Niigata University, 3. NISHIMATSU CONSTRUCTION CO.,LTD.)

*RUAN KUNLIN¹, ITo Daichi¹, Komine Hideo¹, Wang Hailong¹ (1. Waseda University)

*Tomoyoshi Nishimura¹ (1. Ashikaga University)

*Shin Sato¹, Tomoyuki Shimura¹, shuichi Yamamoto¹, Florian Kober² (1. Obayashi corporation, 2. NAGRA)