World Construction Network on MSN

HS2 launches final tunnel machine Karen towards Euston terminus

TBM Karen will excavate the second bore of the 4.5-mile Euston Tunnel.
E&T Magazine

Giant TBM starts work on 2.2km electricity tunnel under the Thames

A 271.5-tonne tunnel boring machine has started excavating a 2.2km tunnel to carry electricity beneath the River Thames.
ianVisits

Inside the giant machine digging HS2’s railway tunnels to Euston station

Nearly 200 metres long and weighing over a thousand tonnes, HS2’s final tunnel boring machine is an underground factory ...