*SOICHIRO MURATA¹, Shuichi Yoshikawa¹, Naoya Sasaki¹, Masanori Nakazawa², Hirohiko Kusaka², Tetsuo Abe², Kosuke Nakashima² (1. Yachiyo Engineering Co.Ltd, 2. Nippon Expressway Research Institute Co.Ltd)

*NAOYA SASAKI¹, Nakazawa Masanori², Kusaka Hirohiko², Abe Tetsuo², Nakashima Kosuke², Yoshikawa Shuichi¹, Murata Souichirou¹ (1. Yachiyo Engineering, 2. Nippon Expressway Research Institute)

*MASANORI NAKAZAWA¹, Hirohiko Kusaka¹, Tetsuo Abe¹, Kosuke Nakashima¹, Shuichi Yoshikawa², Naoya Sasaki², Soichiro Murata² (1. Nippon Expressway Research Institute Co.Ltd., 2. Yachiyo Engineering Co.Ltd.)

*RYUICHI IBUKI¹, TATSUYA DOI¹, JUN IZAWA¹, KENTARO UEMURA², SOKKHEANG SRENG² (1. Railway Technical Research Institute , 2. Nippon Koei)

*Takuo Azuma¹, Tetsuya Sasaki¹, Shunji Kato¹ (1. Public Works Research Institute)

*MASAHIKO YAMAKI¹, Hirochika Hayashi¹ (1. Civil Engineering Research Institute for Cold Region)

*Akiyoshi Kamura¹, Takuro Ibayashi¹, Takumi Hashimoto¹, Motoki Kazama¹ (1. Tohoku University)