*Atsuko Sato¹, Hirochika Hayashi¹, Masahiko Yamaki¹, Dai Nakamura² (1. Civl Engineering Research Institute for Cold Region, 2. Kitami Institute of Technology)

*Gaku Yamashita¹, Daisuke Matsumoto² (1. East Nippon Expressway Company, 2. Nexco-Engineering Hokkaido Company)

*Jian Chen¹, Mitsutaka Sugimoto² (1. Shimizu Corporation, 2. Nagaoka University of Technology)

*Masato Oishi¹, Yuki Kugisaki¹ (1. Seiken)

*TAKYASU SHIRAI¹, TERU YOSHIDA¹, HIDEKI NAGATANI¹, ISSEI SATO¹, ATSUNORI ISHIDA² (1. KAJIMA CORPORATION, 2. Central Nippon Expressway Company Limited)

*Kazuya Suzuki¹, Yuzuru Ito¹ (1. Setsunan University)

*GO Hirose¹, Yuzuru Ito², Hideo Sakabe³ (1. Okumura Engineering Corporation, 2. Setsunan University, 3. Tatsuta Environmental Analysis Center)

*Masahiko Yamaki¹, Hirochika Hayashi¹, Atsuko Sato¹, Jun Ikeda², Takayuki Iizuka², Tsuyoshi Nakamura³ (1. Civil Engineering Research Institute for Cold Region, 2. NITTOC CONSTRUCTION CO, 3. JAPAN FOUNDATION ENGINEERING CO)