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[VI-230] Attempt to evaluate the in-situ of water impermeability based on the pore water pressure response in the bedrock during curtain grouting constrakution

*Mukau Furukawa¹, Hideki Nakajima¹, Takeshi Ishiguro¹, Shinya Aida² (1. MAEDA CORPRATION, 2. Niigata Prefectural Government.)

Keywords:curtain Grouting, pore water pressuregauge, water cover