4:20 PM - 4:30 PM
*Yasuyuki Miyajima1, Jyunichi Kawabata1, Takuji Yamamoto2, Kinzo Kishida3, Hiroshi Shinbo4, Kazuhiko Kanai5, Hayato Nonaka1, Michio Imai1, Noboru Sakamoto5 (1. Kajima corporation, 2. Advanced Construction Technology Center, 3. Neubrex Co., Ltd., 4. Retec Engineering corporation, 5. Yachiyo Engineering Co., Ltd. )