岩の工学的性質

[III-244] An attempt to estimate rock strength using vibration and sound pressure during breaker excavation

*Keisuke Kurihara¹, Kei Yamashita¹, Yasuyuki Miyajima¹, kensuke Date¹, Yasuhiro Yokota¹, Aya Tanaka¹, Tanaka Kazumasa², Tiba Yasushi³ (1. Kajima Corporation, 2. Nitto Denko Corporation, 3. Kankyo Chousasekkei Corporation)

Keywords:tunnel, Soft rock and Sediment, estimate rock strength, Mechanical property value, breaker excavation