6.9K views · 120 reactions | An Earth Pressure Balance Tunnel Boring...

41K views · 53 reactions | The Earth Pressure Balance (EPB) TBM "CREC...

A massive Tunnel Boring Machine moves steadily through solid rock, cutting and grinding its way underground. The rotating cutter head breaks the rock face, while the machine simultaneously supports the tunnel walls and removes excavated material. A clear example of the scale, precision, and controlled power behind modern underground tunneling — where planning, machinery, and engineering work together below the surface. ⚠️ Disclaimer: This video clip is used under Section 107 of the Copyright Act

The Tunnel Boring Machine (TBM) features crucial mechanical elements such as main bearings that support the rotating cutterhead, allowing it to excavate efficiently. Erector bearings play a pivotal role in the tunnel lining process, supporting the erector arms responsible for placing concrete segments to form the tunnel walls. Hydraulic pumps power essential functions like the movement of the cutterhead and the operation of erector arms, providing the necessary force for excavation and tunnel li