開削トンネル・各種基礎 (1)

[VI-885] New approach of BCH (Bottom Circulation Hole) Piling
method Part3
- demonstration experiment for evaluation of drilling efficiency -

*Yusuke Ide¹, Shinichi Tajima¹, Muneyuki Ogawa², Kazuhiko Komatsu², Masayuki Koda³, Taisuke Sanagawa³, Tadashi Yoshikawa⁴, Kenji Hashidate⁴ (1. KAJIMA CORPORATION, 2. CHEMICAL GROUTING Co., Ltd., 3. Railway Technical Research Institute, 4. Advanced Construction Technology Center)

Keywords:Bored pile, Reverse circulation drilling method, Demonstration experiment, Drilling efficiency