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…
HS2 Ltd’s tunnel boring machine (TBM) has launched for its second one-mile tunnel bore under Long Itchington Wood in Warwickshire, marking the next big milestone for construction on the northern section of Phase One of the HS2 project. The 125 metre-long TBM, nicknamed ‘Dorothy’, is boring the tunnel that preserves Read more…
HS2 is celebrating the very first tunnelling breakthrough on its one-mile dig under Long Itchington Wood in Warwickshire. The 2,000-tonne 125m long Tunnel Boring Machine (TBM) named ‘Dorothy’ – after Dorothy Hodgkin, who in 1964 became the first British woman to win the Nobel Prize in Chemistry, started its journey at the tunnel’s North Portal in December 2021, broke through the wall of the reception box at the South Portal site on Friday 22 July 2022. Nearly 400 people working for HS2’s main works civils contractor Balfour Beatty VINCI (BBV JV) have delivered this important milestone on the HS2 project.