9:30 AM - 9:45 AM
*Satoru KOJIMA1, Hidehisa NAGATA2, Yoshiyuki HASEGAWA1, Naoya IWAMOTO1, Keitaro KOMURA3, Heitaro KANEDA3, Tomoyuki OHTANI1 (1.Department of Civil Engineering, Gifu University, 2.Fusuido, Ltd., 3.Department of Earth Sciences, Chiba University)