地下構造物 (1)

[VI-26] Efforts to improve the quality of concrete for diaphragm wall (2)

*Ken Satomi¹, Tsuneo Mafune¹, Shingo Itano¹, Yoshiyuki Sato¹, Akio Kawamura¹, Tetsuji Yamaguti¹, Kento Naitou² (1. Kumagai Gumi Co.,Ltd., 2. Central Japan Railway Company)

Keywords:diaphragm wall, Circular Deep Shaft, Efforts to improve the quality, Strength ratio between water and air, Fluidized Concrete, Mixing of concrete