Like benevolent, mechanical Tremors worms, a team of eight Tunnel Boring Machines are inching their way across England's capital city and leaving neatly packed railway tunnels in their wake. Instead of, you know, all that death, mayhem, and Kevin Bacon.
Right now, there's a 22-foot-wide metal monster dying 14 stories below park avenue. Together with its twin brother, it excavated 346,607 cubic yards (265,000 cubic meters) of bedrock in a 30,000-foot-long (5.6 miles) tunnel.
We've been thinking a lot today about moving earth to make pathways. Tunnels. What if you're not talking about thin, dirt tubes to move humans, though, but holes so big entire industries can flow through them? This is the world's largest tunnel boring machine: an Earth Pressure Balance (EPB) Shield developed by…
This tunnel-boring machine has been boring subway holes in the tough New York dirt for 30 years now, and has been brought into action again on Second Ave. Isn't it a beauty?