Have they pushed the boundaries though? As I understand it TBMs have been a thing for a while and plenty of pretty impressive and enormous tunnels have been built in the alps or under seas like the Channel Tunnel or the tunnel section of the Oresund bridge.
This isn't my area of expertise but all I've heard so far were a few test tunnels and the Las Vegas Loop, which isn't lighting the world on fire. I mean if they make it easier + cheaper to build tunnels then I'm all for it. I've just not yet seen anything that suggests TBC is particularly interesting.
Have they pushed the boundaries though? As I understand it TBMs have been a thing for a while and plenty of pretty impressive and enormous tunnels have been built in the alps or under seas like the Channel Tunnel or the tunnel section of the Oresund bridge.
This isn't my area of expertise but all I've heard so far were a few test tunnels and the Las Vegas Loop, which isn't lighting the world on fire. I mean if they make it easier + cheaper to build tunnels then I'm all for it. I've just not yet seen anything that suggests TBC is particularly interesting.