Welding work at the drill head
Welding work at the drill head
Rock meets concrete
The Gotthard Base Tunnel is a high-tech product – and, like every tunnel, the result of much hard graft: by labourers, masons and concrete layers.
View eventWelding work at the drill head
The Gotthard Base Tunnel is a high-tech product – and, like every tunnel, the result of much hard graft: by labourers, masons and concrete layers.
View event