An attempt to detect the decline area of elastic wave velocity around the tunnel using seismic reflection method

Dohta Awaji, Wataru Moriyama, Ryohei Hase, Akio Asano, Daisuke Ishikawa, Shingo Kato

[VI-454] An attempt to detect the decline area of elastic wave velocity around the tunnel using seismic reflection method

〇Dohta Awaji¹, Wataru Moriyama¹, Ryohei Hase¹, Akio Asano¹, Daisuke Ishikawa², Shingo Kato² (1.Shimizu Corporation, 2.Japan Railway Construction, Transport and Technology Agency)

Keywords:Moutain Tunnels, Seismic Reflection Method, Geological Risk

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[VI-454] An attempt to detect the decline area of elastic wave velocity around the tunnel using seismic reflection method