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Crossrail, Farringdon Station

Project data

Location: London, United Kingdom

Purpose: Erect a scaffolding solution for installing waterproof membrane for the tunnel

One of the most significant infrastructure projects ever undertaken in the UK, London’s Crossrail is a high-frequency, high-capacity service enabling faster travel across the capital. Forming part of Crossrail’s plan to open up 10 new stations, the remodeling of Farringdon station endeavours to prevent overcrowding and generate economic growth in the area. The finished railway will be named the Elizabeth line when it opens in 2018.

Date of Completion: 2018

Requirements

  • To construct the tunnels at Farringdon, mobile scaffolding of over 8m diameter was required to enable both waterproofing and spray concrete lining.
     
  • The customer also required truck access directly into the tunnel in order for works to progress simultaneously.

Customer

Bam Ferrovial Kier JV (BFK), Prestec

Customer's benefit

Scaffold design accommodated truck access

System adapted to meet structural requirements

Guillermo Lalinde
Section Engineer

The new system reduced the time required to move the tower from one hour to 20 minutes, leading to an increase in production from five metres of tunnel per day to 12 metres.

PERI solution

  • The scaffolding system was tailored so it could fit detachable cantilevered console brackets on the edges of the structure to enable waterproofing as well as subsequent concrete spraying, reducing construction time.
     
  • To enable truck access direct to site, the scaffolding featured a 4.4m x 3m passage through the middle, enabling construction to continue with no disruption to waterproofing works.
     
  • Following on from its success, the PERI UP system was later used on heavy-duty rollers which integrated with RCS and VARIOKIT to facilitate work on another section of the tunnel.