3 ms·
How would you reverse a tunnel boring machine? Sure, you can take part of it out the back but the cutting head is usually one piece and is at least the size of
by stephen_g 8y ago
How would you reverse a tunnel boring machine? Sure, you can take part of it out the back but the cutting head is usually one piece and is at least the size of the outer diameter of the tunnel. You couldn’t fit it back through - you’d only be able to go as far as you hadn’t lined, which is usually only about a metre long at most...
- dpark 8y agoDetacheable and separable head? Don’t honestly know. I’d heard that it was an option for Bertha that was declined. Maybe there was lots of misinformation because I heard similar things several places.