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[VI-956] Flood measures of the Driling for Realease Tunnel within a Dam pond

〇KAZUSHI YABE¹, Motoaki Mizuno¹, Akira Fujiyama¹, Go Saito¹, Naoto Yoshida² (1.Taisei Corporation, 2.Ministry of Land Infrastructure,Transport and Tourism Kinki Regional Development Bureau)

Keywords:dam, renewal, tunnel, flood measures, steel pipe sheet pile amputation