Breakthrough at the Gotthard Base Tunnel on October ... of transverse and connecting tunnels guarantees that smoke can escape and fresh air can enter the tunnel.
With a rock overburden of up to 2,300 metres, Gotthard Base Tunnel, which has been opened for scheduled train services in December 2016, is not only the world's longest, but also the world's deepest railway tunnel ever constructed.
Siemens makes sure that even the most anxious passengers will be able to enjoy a very relaxing journey through the Gotthard Base Tunnel, ... and inflates fresh air.
The Gotthard Base Tunnel is currently under construction through ... fresh air into the tunnel. ... ↑ AlpTransit and Transtec Gotthard Consortium to build base tunnel.
The Gotthard Base Tunnel (GBT) is the longest railway tunnel in the world and is soon to be ... fresh air and exhaust air fans could be shortened.