2006-12-13 18:23:44 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Engineering
No, the tunnel boring machines is only design to penetrate through earth to make tunnel, it is not a sharp thing, just like a large spade.
2006-12-13 19:02:10 · answer #1 · answered by Lai Yu Zeng 4 · 0⤊ 0⤋
Depends on the machine. I've seen some slice right through steel and others bounce off it.
2006-12-13 18:54:09 · answer #2 · answered by eddyac 3 · 0⤊ 0⤋
Yup...Some of the boring machines in my country are tipped with black diamond powder. They have fairly high RPMs and cut through steel....
2006-12-13 18:58:26 · answer #3 · answered by ashwin_hariharan 3 · 0⤊ 0⤋
In addition to the first answer - it also depends on the speed of the machine itself - the one's that did the channel tunnel took MONTHS to do approximately 22 miles (35km)
2016-05-24 00:30:05 · answer #4 · answered by ? 4 · 0⤊ 0⤋