A video of a large diameter tunnel being excavated with a Tunnel Boring Machine (TBM). The view is looking towards the cutting wheel rotating from inside the machine.

Name: Video Large Diameter Tunnel Being Excavated
Uploaded: 2017-02-17T00:00:00.000Z
Duration: 10 s
Channel: Stephen Allen Photography
Description: A video of a large diameter tunnel being excavated with a Tunnel Boring Machine (TBM). The view is looking towards the cutting wheel rotating from inside the machine. Stock Footage Video (100% Royalty-free) 24084454 | Shutterstock