*Ryoudai Nakaso¹, Hiroshi Okawa², Kazuo Kashyama¹, Tsuyoshi Kotoura³ (1. Chuo University, 2. Eight-Japan Engineering Consultants Inc., 3. Penta-Ocean Construction CO.)

*Masato Gotou¹, Syuji Goto¹, Toshiyuki Shimoda², Naoyuki Nakatani², Natsuki Yamamura², Riki Matsuzaki³ (1. Joint Venture of Taisei・Iwatachizaki・Kandenko, 2. Bureau of Waterworks Tokyo Metropolitan Government, 3. Komatsu Customer Support Japan Ltd)

*Kazutami Hata¹, Yoshihiro Shobu¹, Shinobu Kagohashi¹ (1. Dai Nippon Construction)

*Ouhaku Shou¹, Shintsuke Kawaai¹, Munehisa Yoshida¹ (1. Okumuragumi civil engineering corporation)

*Munehisa Yoshida¹, Yuto Shimizu¹, Xiao Aobo¹, Koichi Narahara¹ (1. OKUMURA ENGINEERING CORPORATION)

*Hiroaki Ito¹, Hiroyuki Ishihama¹, Mari Yamagishi¹ (1. HAZAMA ANDO CORPORATION)

*Yoshimasa Kashimura¹, Naoya Maeta² (1. Nexco-East Engineering Company Limited, 2. East Nippon Expressway Company Limited)