Keller Group plc ("Keller" or "the Group"), the international ground engineering specialist, announces that it has been awarded a contract worth approximately £30m to construct access ramps and Tunnel Boring Machine ("TBM") launching/receiving chambers for a new road tunnel under the Dead Vistula river in Gdańsk, Poland.
The new structure, being the first road tunnel constructed in Poland using TBM technology, will consist of two parallel tunnels over 12 m in diameter and almost 1.1 km in length. The access ramps on the western and eastern sides of the tunnel will be around 40 m wide and 750 m and 340 m long, respectively.
Keller will construct diaphragm walls along the access ramps and TBM chambers and will apply advanced jet grouting technology, using its super jet monitors, to enable large diameter soilcretecolumns to be installed at considerable depth.
Work is expected to commence shortly and to complete in the second quarter of next year.
Justin Atkinson, Keller Chief Executive, commented:
"Increasing our participation in large and complex projects is one of our key aims and we are delighted that the consortium building the Gdansk tunnel has chosen Keller as its partner.
"We have extensive experience of supporting large-scale tunnelling projects around the world and are currently working on projects related to London's Crossrail development and the Rome Metro extension.1 Such projects enable us to take full advantage of the accumulated knowledge and experience within our global businesses."
1 Case studies can be found on our website at http://www.keller.co.uk/services.aspx
Notes to Editors:
Keller is the world's largest independent ground engineering specialist, providing technically advanced and cost-effective foundation solutions to the construction industry. With annual revenue in 2011 of £1.15bn, Keller has over 6,000 staff world-wide.
Keller is the market leader in the US, Australia and Poland; it has prime positions in most established European markets; and a strong profile in many developing markets.