山岳トンネル (3)

[VI-248] Filling confirmation of the top end of the covered concrete using an ultra-thin filling detection sensor and a pressure sensor

*Ryo Kakinuma¹, Kotaro Aida¹, Hajime Hamada², Shohei Kawaguchi², Kento Hayasi (1. Okumura Corporation East Japan Branch, 2. Okumura Corporation Technical Research Institute)

Keywords:Mountain Tunnel, Covered concrete, Top end, Filling, Fill detection sensor, Pressure sensor