HS2’s giant tunnelling machine Mary Ann broke through in May – marking the end of her mission to excavate the first bore of what will soon become the longest railway tunnel in the West Midlands. The 125-metre-long machine began constructing the 3.5-mile (5.8km) Bromford Tunnel, which starts at the Warwickshire Read more…
HS2’s second tunnel boring machine (TBM), named Caroline, has completed a 5-mile tunnel drive under London. This is the second machine to reach the Green Park Way vent shaft in Ealing, and one of four giant tunnelling machines being deployed to build the railway’s Northolt Tunnel. The 2,050-tonne TBM broke Read more…
The HS2 lifted Tunnel Boring Machine (TBM) ‘Sushila’ is out of the ground at the Green Park Way site in Greenford, West London following its 5-mile drive underneath the capital. The cutterhead, front and middle shield, weighing 850 tonnes, were lifted from the vent shaft in one piece using a Read more…
The foundations have been completed at the HS2 Old Oak Common high speed station in West London. The 850-metre-long underground station base, which will house six platforms for high-speed trains, has been constructed using 76,000 cubic metres of concrete and 17,000 tonnes of reinforced steel. The base slab covers 45,000 Read more…
Following the government’s announcement as part of the Budget statement giving the green light to the building of HS2’s Euston Tunnel, HS2 Ltd has released a new image of the tunnel boring machines that will build the 4.5 mile twin bore Euston Tunnel. Copyright HS2 Ltd.
The second giant boring machine (TBM) building HS2 under the Chiltern Hills has now broken through at the tunnel’s northern portal, completing a journey that began in June 2021. Named Cecilia, the TBM has driven for 10 miles underground to join twin sister machine – Florence. She arrived at the Read more…
The first Tunnel Boring Machine (TBM), launched almost 3 years ago, broke through under the Chilterns recently, having excavated the longest tunnel on HS2 at 16km. TBM Florence is one of 10 machines excavating the 32 miles of tunnel on the new railway linking London Euston with Birmingham and was Read more…
HS2’s third tunnel boring machine (TBM) has now been launched and will bore 3.4 miles under Ealing from Victoria Road Crossover Box, near HS2’s new Old Oak Common station, to Greenpark Way in Greenford. London Tunnels contractor, Skanska Costain STRABAG joint venture, assembled the TBM underground at the Victoria Road Read more…
A team of 90 specialist engineers has completed the assembly of HS2’s giant tunnel boring machine (TBM) which will dig the second bore of the 3.5 mile Bromford Tunnel into Birmingham. In an assembly operation to move sections of the machine into a 12-metre deep launch pit, two 600 tonne Read more…
HS2 has completed a set of major lifts of Tunnel Boring Machine (TBM) components at its Victoria Road Crossover Box site, in Ealing, west London. The TBMs will be used to dig the eastern half of the Northolt Tunnel – which will ultimately be used to take the new high-speed Read more…