Ground engineering specialist Keller has been awarded two contracts for Crossrail’s main tunnels.
The first contract includes compensation grouting work at London Underground’s Tottenham Court Road and Bond Street stations.
It also includes the installation of over 50km of specialist pipe, through which grout will be pumped whilst the tunneling works are in progress, to mitigate ground movement and protect the existing infrastructure.
The second contract is for structural monitoring, geotechnical instrumentation and surveying works. The two contracts will be undertaken in joint venture and have a combined value of about £30M. Work on both will begin shortly and will run through to 2014.