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THE GOTTHARD BASE TUNNEL - TRANCHE 451

This included the construction of the inclined shaft at Faido for access to the Gotthard Base Tunnel.

The excavation of this 2760 m long tunnel, with its average section of 60 m² and an average gradient of 12.7%, was performed using traditional methods with the installation of anchors and shotcrete as support measures.

The execution of the final lining (invert and arch) was carried out at the same time as the excavation.