*NARITA NOBUHIDE¹, Naoya Kuze², Yoshinori Tobita³, Takeshi Kishimoto⁴, Atsushi Ogawa⁵, Yusuke Tomita⁶, Takahiko Uchida⁷, Mitsuru Onuma⁸, Eiji Kawahata⁹, Akio Abe¹⁰, Toshiaki Arai¹¹, Haruki Numoto¹², Takeshi Sato¹³ (1. Toda Co., 2. Center of Better Living, 3. Asanuma Co., 4. Okumura Co., 5. Kumagaigumi Co., Ltd., 6. Penta-Ocean Construction Co., Ltd., 7. Sato Kogyo Co., Ltd., 8. SEIBU CONSTRUCTION Co., Ltd., 9. Toa Co., 10. Tokyo Soil Research Co., Ltd., 11. Nishimatsu Construction, 12. HASEKO Co., 13. MATSUMURA-GUMI CORPORATION)

*KOJIMA IKUO¹, tatsuhiko kojima¹, shinji nishimura² (1. Tama Blasting Engineering, Co.,ltd., 2. Seeds Engineering, Inc.)

*KAIRI MAGARA¹, Yoshiaki Kikuchi², Shohei Noda², Mitsuru Saotome¹, Katsunori Sugita² (1. Graduate School of Tokyo University of Science , 2. Tokyo University of Science)

*KAZUNORI INAZUMI¹, Shinji Nishimura², Method Reserch Society GANPILE³ (1. Obayashi Corporation, 2. Seeds Engineering Inc., 3. GANPILE Method Research Society)

*HIRONORI TAKAHASHI¹, Youhei Morohashi¹, Shinji Nishimura², Akio Sowa³ (1. Technical research association for Vibratory hammer method, 2. SEEDS ENGINEERING Inc., 3. Japanese Association for Steel Pipe Piles)

*Hideyuki Asada¹, Hiroyuki Saegusa¹, Shinya Omori¹, Shinji Nishimura² (1. TOA Corporation, 2. SEEDS ENGINEERING)

*YOSUKE TANAKA¹, Hideyuki Asada¹, Hiroyuki Saegusa¹, Shinji Nishimura² (1. TOA Corporation, 2. Seeds Engineering)

*SHINJI NISHIMURA¹, Hirotaka Takahashi², Takuto Mori² (1. SEEDS ENGINEERING Inc., 2. Chowa Kogyo Co.,ltd.)