*Ryo Hasegawa¹, Susumu YOSHIDA¹, Takayoshi SHIINA², Noriyuki MITSUI² (1. Civil Engineering Research Institute Cold Region, 2. NISHIMATSU CONSTRUCTION Co.,Ltd.)

*Chikako Kamei¹, Taisei Araki¹, Daishin Hanaoka¹, Mitsugu Nomura², satoshi Tomoto² (1. Kanazawa Institute of Technology, 2. CTI Engineering Co.,Ltd.)

*Susumu Yoshida¹, Ryo Hasegawa¹, Takayoshi Shiina², Yusuke Takagi², Noriyuki Mitsui² (1. Civil Engineering Research Institute for Cold Region, 2. NISHIMATSU CONSTRUCTION Co.,Ltd.)

*Kouji Mesaki¹, Noriyuki Mitsui¹, Hitoshi Ogura¹, Yuuji Ono¹, Tatsuya Suzuki¹ (1. NISHIMATSU CONSTRUCTION Co.,Ltd)

*Hiromitsu Koyama¹, Shosuke Fujiwara¹, Taro Hiromitsu¹, Tomonori Ono¹, Yoshiki Uno¹ (1. SATO KOGYO CO.,LTD.)

Hiroki Saito¹, *Takeshi Shiomi², Mutsumi Shimode³ (1. Ministry of Land, Infrastructure, Transport and Tourism, Hokkaido Regional Development Bureau, 2. Arai Kensetsu.Co.,Ltd., 3. A-TiC Co.,LTD .)

*Yoshikatsu Maeda¹, Azetsu Nobuhiko¹, Ikegami Eiji², Nakanishi Yusuke², Fukuda Hiroyuki², Matsumoto Syuji², Tezuka Yasunari² (1. West Nippon Expressway Company Limited, 2. KAJIMA CORPORATION)

*Tetsuya Yamazaki¹, Kiyoto Nakano¹, Hotaka Okihara¹ (1. Nippon Expressway Research Institute Company Limited)