Underground Civil Works

Tunnel Drilli and Blast works. AVE Madrid – Galicia. Section: Prado Tunnel Left Track

Client: ADIF (Spanish Railway Infrastructure Manager)

High Speed Railway line Madrid-Galicia, tunnel of Prado, Left tube: rebuilding of 26 meters of tunnel in top heading section due to previous severe convergence and excavation of 271 m of bench section including different injections and soil treatment works to prevent squeezing problems.