Tunnel Boring Machine

TBM Elizabeth has completed the 3.5-mile Bromford tunnel, marking the end of major tunnel excavation between London and Birmingham.

Italian side nears completion as segment use and concrete volumes highlight project’s scale

TBM Caroline lifted from Greenford shaft after completing 5-mile tunnel section for HS2

Over 17,000 precast segments installed as TBM ‘Emily’ completes 5.5km drive under west London

120-tonne cutterhead lifted from Birmingham tunnel as TBM completes first Bromford bore

Video shows Mary Ann TBM completing 3.5-mile tunnel linking Warwickshire and Birmingham

Project to construct network of storm-water storage tunnels starts with tunnelling boring machine (TBM) launch

HS2 achieves key milestone with over half of the tunnels now completed