Adrian Olmex's Wall : TunnelContact.com

Adrian Olmex's Wall

Adrian Olmex shared a link 1570 days ago

It's a Robbins.
City of Dallas unveils the largest hard rock TBM ever to bore in the United States.

The 11.6 m (38.1 ft) diameter #Robbins Main Beam TBM will excavate the 8 km (5 mile) Mill Creek Drainage Relief tunnel, and its size is not its only distinction. The adaptable machine will change size partway through the bore, to a more compact 9.9 m (32.5 ft).

https://tunnelingonline.com/robbins-unveils-largest-hard-rock-tbm-in-the-united-states/

Robbins Unveils Largest Hard Rock TBM in the United States
tunnelingonline.com

In December 2019, the City of Dallas unveiled the largest hard rock TBM ever to bore in the United States - a 38.1-ft Robbins Main Beam TBM.
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By Dave Anderson 1569 days ago
In this country, we have The Robbins Company which has virtually invented the TBM tunneling. I don't know why we have to import TBM from Germany and Japan for our projects? What was the last time Germans and Japanese imported a Robbins?