Takagi Masamitsu¹, Chiku Shinichi¹, *Ko Sasaki¹, Machinaga Masaki¹, Takahashi Hiroyuki¹, Tokuyama Shun², Minami katsumi² (1. Asunaro Aoki Construction Co.,Ltd., 2. TAGUCHI INDUSTRY INC.)

*Satoru Yamamoto¹, Jyunichi Tsukada², Masashi Takahashi³ (1. NISHIMATSU CONSTRUCTION Co.,Ltd., 2. Geo-Machine Engineering Corporation, 3. Future Iris Ltd.)

*Masaki Mochida¹, Hideyuki Sakamoto¹, Tomoyuki Maeda¹ (1. PENTA-OCEAN CONSTRUCTION CO., LTD.)

*Keisuke Kitamura¹, Sakamoto Hideyuki¹, Mochida Masaki¹, Maeda Tomoyuki¹ (1. PENTA-OCEAN CONSTRUCTION CO., LTD.)

*Takaaki Inuzuka¹, Shigeru Mutaguchi¹, Kousuke Hiraoka¹ (1. Kajima)

*Kazuhiko Mizutani¹, Hidesato Kojima², Ichiro Sekine³, Satoru Yamamoto⁴, Katuhisa Yotsuduka⁵ (1. MAEDA CORPORATION, 2. SHIMIZU CORPORATION, 3. TODA CORPORATION, 4. NISHIMATSU CONSTRUCTION, 5. FTS)

*Gota Imasaka¹, Shingo Yamamoto¹, Hiroyuki Morino¹, Daisuke Fujioka¹, Nobuhiro Taniguchi¹, Seichi Miyakoshi², Takanobu Yoshi³ (1. Obayashi Corporation, 2. FURUKAWA ROCK DRILL CO.,LTD., 3. MARUMA TECHNICA CO.,LTD.)

*Daigo Shimane¹ (1. Nishimatsu Construction)