*MAKI OKUMA¹, Masanori Hatakeyama¹, Takahiro Kawahara¹, Shogo Shimamura¹, Kazuhiro Kaneda², Toshiro Hata³ (1. Oyo Corporation, 2. Chiba Institute of Technology, 3. Hiroshima University)

*Kyoichi Sato¹, Fei Cai¹ (1. Gunma University)

*yudai takada¹, Shinichi Ito¹, Kazunari Sako¹, Ryosuke Nakajima¹, Daichi Isi¹ (1. Kagoshima University)

*Shinji Kawahara¹, Kazuhiro ODA¹, Shin-ichi ITO³, Keigo KOIZUMI², Hiroshi TSUTSUMI⁴ (1. Osaka Sangyo University, 2. Osaka University, 3. Kagoshima University, 4. West Nippon Expressway Company Limited)

*RYOSUKE NAKAJIMA¹, Kazunari Sako¹, Shinichi Ito¹, Ryosuke Kitamura² (1. Kagoshima University　, 2. Professor emeritus of Kagoshima University)

*Ibuki Nishimura¹, Hitoshi Matsubara² (1. Graduate school of University of the Ryukyus, 2. University of the Ryukyus)

*TETSUNOSUKE MOROTOMI¹, Toshihiko Miura¹, Taichi Terui¹, Shinya Inazumi², Toshiyuki Motohashi³, Shigeo Sasahara⁴, Yoshio Miyatani⁴ (1. Obayashi Corporation, 2. Shibaura Institute of Technology, 3. Osaka Bousui Construction Co. Ltd, 4. Fuji Chemical Co. Ltd)