*Kaede Ochiai¹, Chikara Watanabe¹ (1. National Institute of Technology, Hakodate College)

*Yoshiyuki Oguri¹, Aya Kimura¹, Keisuke Kondo¹, Kenichi Maeda¹, Takuro Nakamura², Kentaro Suzuki³, Harushi Kosaka⁴, Tomoki Kawarai⁵ (1. Nagoya Institute of Technology, 2. Civil Engineering Research Institute for Cold Region, 3. Koken Engineering, 4. Toyohashi University of Technology, 5. Muroran Institute of Technology)

*Keisuke Kondo¹, Aya Kimura¹, Yoshiyuki Oguri¹, Kenichi Maeda¹, Takuro Nakamura², Tomokazu Kaifu³, Naoto Naito⁴ (1. Nagoya Institute of Technology, 2. Civil Engineering Research Institute for Cold Region, 3. Koken Engineering, 4. Toyohashi University of Technology)

*Naoki Sawamura¹, Aya Kimura¹, Keisuke Kondo¹, Yoshiyuki Oguri¹, Kenichi Maeda¹, Takuro Nakamura², Naoto Naito³, Yuta Masuko⁴ (1. Nagoya Institute of Technology, 2. Civil Engineering Research Institute for Cold Region, 3. Toyohashi University of Technology, 4. Koken Engineering)

*Aya Kimura¹, Keisuke Kondo¹, Yoshiyuki Oguri¹, Kenichi Maeda¹, Takuro Nakamura², Yuji Ushiwatari³, Yuto Okugawa⁴ (1. Nagoya Institute of Technology, 2. Civil Engineering Research Institute for Cold Region, 3. Koken Engineering, 4. Toyohashi University of Technology)

*Hiroyuki Sugimoto¹ (1. Hokkaigakuen university )

*Shouji Toma¹, Wai Fah Chen² (1. Taiki Consultant, Ltd., 2. Professor Emeritus, University of Hawaii)