*Daisuke Iizuka¹, Kazunori Inazumi¹, Hirofumi Taguchi², Hidekazu Matsubara³, Michihiro Nakajima⁴ (1. Obayashi Corporation, 2. Toa Corporation, 3. JFE Steel Corporation, 4. Ganken Corporation)

*UMEZAKI TAKEO¹, Takashi Kawamura¹, Minqi Zhou², Hattori Akira³, Okamoto Koichi⁴ (1. Shinshu University, 2. Shinshu University, 3. Goda Co., Ltd., 4. Nippon Shokubai Co., Ltd.)

*YUKI KASUYA¹, Tomotaka Morishita¹, Yuki Yamada¹, Toshihiko Miura¹ (1. Obayashi Corporation)

*MORISHITA TOMOTAKA¹, Yuki Kasuya¹, Toshihiko Miura¹, Yuki Yamada¹ (1. Obayashi Corporation)

*TAKESHI FUKUDA¹, SANO DAISAKU¹ (1. Toda Corporation)

*NAKAO KOKI¹, Shinya Inazumi¹, Tetsuo Iida², Minoru Kikuchi² (1. Shibaura Institute of Technology, 2. SST Association Inc)

*UEHARA TOMOKI¹, Kouki Nakao¹, Shuichi Kuwahara², Shinya Inazumi¹ (1. Shibaura Institute of Technology, 2. Japan Association for Pulling-Out Existing Piles)