I think a good deal of the tunnel under the English channel has been dug with TBMs. But these last points were dug manually and there you go! Two sides meet each other under the sea!
The China Railway Group (CREC) on Thursday announced its completion of a huge tunnel boring machine (TBM) with advanced capabilities for drilling in wet conditions, a breakthrough which the company sees as a demonstration of its world-leading...
It is a Robbins Double Shield with a diameter of 5,06 meters.
It is reported that it bored 12,2 km in 18 months `8 months ahead of schedule' and with a progress of '1.000 m per month' (this is what Robbins says).
Simply amazing!
26/02/2019 Ski, Norway Acciona Ghella Joint Venture (AGJV) are excavating on behalf of Bane NOR TBMs "Magda" and "Anna" from Herrenknecht AG
Welcome to the surface! E-BERK's TBM with E-BERK Cutting Tools breaks out to the daylight after a 4716m long, 4,98m diameter tunnelling.
DSİ Pamukluk Dam water conveyance project. Mersin, in the Mediterrenean cost of Türkiye.