*shinya kitahara¹, kouji kani¹, takahiko ookouchi¹, Yoshitaka okita¹, tooru tanaka¹, norihiko amo², kiyomiti kawamoto², masatugu tada² (1. TODA Corporation, 2. Kitagawa Corporation)

*Ryo Ishinaka¹, Shinya Shinguu¹, Kazuhiro Hashimoto², Yukihide Juukuroki² (1. Kumagai Gumi Co.,Ltd., 2. Yatsushiro River and National Highway Office)

*Kanae Miyaoka¹, Mikio Kurashige¹, Takeshi Okazawa¹, Masakazu Yanagawa¹, Takashi Tanaka², Satoshi Yoshimura² (1. SHIMIZU CORPORATION, 2. Groovenauts, Inc.)

*Makoto Sasaki¹, Fumiyasu Kaya¹, Yasushi Morita², Syogo Isobe² (1. MARUWAGIKEN Corporation, 2. TAISEI Corporation)

*Ryotaro Honda¹, Watanabe Takumi¹, Masuda Hiroaki² (1. hokurikusikten, 2. niigatasiysa)

*Mitsuyoshi Sakata¹ (1. SATO KOGYO CO,LTD.)