5:15 PM - 7:15 PM
*Yuzuno Kanbara1, Tomonori Shimada1, Shunichi Maeda1, Nobuyuki Hotta1, Tsuyoshi Miura2, Hisashi Kamei3 (1.Civil Engineering Research Institute for Cold Region Public Works Research Institute, 2.Hokkaido Regional Development Bureau, 3.Obihiro Development and Construction Department, Hokkaido Regional Development Bureau)