Crossrail contract C510

Crossrail contract C510

Early Access Shafts and Sprayed Concrete Lining Works for Whitechapel and Liverpool Street station tunnels

BBMV, the joint venture encompassing Balfour Beatty, ALPINE BeMo Tunnelling, Morgan Sindall and VINCI Construction, is constructing early access shafts and Sprayed Concrete Lining (SCL) works for both Whitechapel and Liverpool station tunnels.

The major construction works for C510 began in April 2011 and includes the construction of the Crossrail Whitechapel and Liverpool Street Station SCL tunnels. Associated works will include the shafts and adits, platform tunnels, Tunnel Boring Machine (TBM) reception chambers and launch chambers, cross passages, access passages, escalator barrels, ventilation ducts and a link passage from Crossrail Liverpool Street Station to the London Underground Northern Line Moorgate.

Station platforms – the works also include the construction of four compensation grouting sites in the vicinity of Liverpool Street Station and one compensation grouting shaft in the vicinity of Whitechapel Station.

Material for sprayed concrete

Hanson UK is supplying BBMV with key components for the sprayed concrete mix. Ketton works is the approved cement source; the material is railed into our central London cement distribution depot at Kings Cross, and road delivered direct to site. The marine sand is supplied via Hanson marine and processed at Dagenham wharf and road delivered to site.

With limited site storage at both Finsbury and Whitechapel sites, and the demanding daily sprayed concrete program, weekly and daily logistics planning between the BBMV site team and Hanson orders at Kings Cross and Allington has significantly contributed to the overall success to date. Communication and just in time delivery has reduced vehicle congestion at the vehicle holding areas awaiting discharge to the concrete plants Hanson operates one of the largest Crossrail approved delivery fleets in London, with over 150 vehicles and operatives now approved to deliver to these sites.

Volumes

  • Cement 48,000 tonnes
  • Marine sand 40,000 tonnes
London
United Kingdom