2:40 PM - 3:00 PM
○Kazuki Maehara1, Takashi Sasaoka1, Hideki Shimada1, Akihiro Hamanaka1, Tomonori Hoshino2, Masatomo Ichinose3 (1. Department of Earth Resources Engineering, Faculty of Engineering, Kyushu University , 2. Obayashi Corporation, 3. Center of Urban Infrastructure, Environment and Resources)