High Speed 2’s (HS2’s) Chilterns tunnel boring machine (TBM) struggled through the final stretch of its 16km drive as slurry pipes became clogged with clay, officials told NCE.
High Speed 2 (HS2) Ltd and its main works contractor Align JV (Bouygues, McAlpine, VolkerFitzpatrick) celebrated the completion of the first bore of the 16km Chilterns tunnel today, 27 February.
A third “giant” tunnel boring machine (TBM) has been launched by High Speed 2 (HS2) contractor Skanska Costain Strabag (SCS JV) from its Victoria Road Crossover Box near Old Oak Common in London.
The opening of Transport for London’s (TfL’s) Silvertown Tunnel has been brought forward to early 2025 while work on the cut-and-cover sections and road realignment works have hit full steam.
Campaigners’ case against the government’s decision to green light the £1.7bn Stonhenge Tunnel has been quashed by a High Court judge.
A new video has detailed how the 73,000t concrete elements that will form the 18km immersed tube Fehmarnbelt Tunnel will be precisely assembled to mm precision on the seabed between Germany and Denmark.
Two more sinkholes have opened up within five days of each other along the route of tunnelling for High Speed 2’s (HS2's) Chiltern tunnels.
Sewage will be diverted from the River Thames in increasingly large proportions from summer 2024 as London’s super sewer Thames Tideway Tunnel starts the process of commissioning.
Tunnelling for the £9bn Lower Thames Crossing (LTC) will use the latest tunnelling technologies to overcome site, geological, water pressure and other constraints, the project’s tunnels technical director Keith Bowers told NCE.
Ageing tunnels in America, coupled with the country’s continued growth, have created an extremely high demand for attention. The imminent repair and replacement will result in significant growth in the tunnel construction market in North America over the next several years.
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