9:30 AM - 9:40 AM
*Shinichi Koizumi1, Takumi Sugamata1, Nobuaki Ago1, Akira Hosoda2, Haruka Mori2, Ryoichi Ashizawa3, Masae Ohashi3, Kenzo Watanabe3, Shuji Yanai3, Tatsuya Tsutsui4 (1. Pozzolith Solutions, 2. Yokohama National University, 3. Kajima Corporation, 4. Kokusaikigyou)