Indeed Robbins invented the TBM. And then stopped right there. What innovation worth mentioning did Robbins achieve since 60s last century? The sad fact is, I cannot think of any. And for the Japanese, they made tremendous innovations in slurry technology field and also in big diameter TBM technologies.
' thanks to the Japanese engineers' contributions to tunnel boring machine technology'?
Are you serious?
The last time I checked it was the USA a.k.a Robbins, who invented TBM and took it further than anyone else.
Indeed Robbins invented the TBM. And then stopped right there. What innovation worth mentioning did Robbins achieve since 60s last century? The sad fact is, I cannot think of any. And for the Japanese, they made tremendous innovations in slurry technology field and also in big diameter TBM technologies.