Full project details
Breaking ground literally and metaphorically at one of London’s most sophisticated underground station upgrades.
A new station entrance, ticket hall, escalators, an additional access route and an improved interchange between the Central and Jubilee lines will increase daily capacity to 255,000 passengers. We have strengthened underground utilities as a precursor to tunnelling works, which will connect the station into the new Crossrail (CRL) matrix and transform one of the key subterranean gateways to London's West End.
Overcoming complex underground challenges
The station straddles a dense network of utilities in fragile 19th century cast iron pipes. Any breakages, particularly under Oxford Street (one of Europe’s busiest retail thoroughfares) would have been catastrophic, so we installed plastic strengthening sleeves inside 1.2km of the pipes and cut through concrete backfilling using hydro-demolition – the safest and quickest removal procedure.
Building Information Modelling (BIM) enabled us to deliver escalator works within strict time restrictions; we superimposed a 3D model of the new escalator over the existing model to identify potential clashes and resolve clearance issues in advance. To enhance the process we are exchanging complex 3D geometry with Crossrail to help streamline design, manufacture and delivery. Prior to tunnelling we use a virtual reality suite to prepare operatives, emergency response teams and the London Fire Service.
- Considerate Constructors Silver Award
- London Underground Silver Star
- RoSPA Gold Award