*Ryoji Hirata¹, Water Resources Division Environment Bureau, Living and Environment Department², Shinji Komatsu¹, Yasunori Katsume¹, Naoko Okamoto¹ (1. OYO Corporation, 2. Shizuoka Prefecture)

*KATSUHITO AGUI¹, Naohiro Sakamoto¹, Moto Kawamata¹, Toshiyuki Kurahashi¹ (1. Civil Engineering Research Institute for Cold Region)

*TAKEHISA SHIIBA¹, Taichi Ikenaga², Kenshin Hiramoto² (1. Takenaka Civil Engineering & Construction Co. Ltd, 2. Soil and Rock Engineering Co.Ltd)

*MIZUKI SUZUKI¹, SAITOU OSAMU², NAKASUKA SHINICHI³ (1. Middle School of IbarakiUniversity, 2. Ibaraki University, 3. University of Tokyo)

*Nobutaka HIRAOKA¹, Ryota Nakane², Kazuya Itoh² (1. JNIOSH, 2. Tokyo City University)

*YUKIHIDE ARIMOTO¹, Masahiro Kaneko¹, Tomoyuki Maeda², Wataru Sato², Masafumi Ekawa², Norikazu Shimizu³ (1. West Nippon Expressway Engineering Chugoku Co.,Ltd, 2. Kokusai Kogyo Co.,Ltd, 3. Yamaguchi University)

*IWASA YOSHIHISA¹, Yosuke Ito², Atsuko Nonomura³, Teruhiko Yoshinaka⁴, Yui Noguchi⁵ (1. Lime consltants, 2. Naruto University of Education, 3. Kagawa University, 4. Eight-Japan Engineering Consultants Inc., 5. kiso-jiban Consultants Co.,Ltd. )