Procurement plans for the next stage of Copenhagen’s metro network are being prepared with a prequalification call due later this year for the 15km long, twin tunnel Cityringen project.
The next stage of the metro – Phase 4, the other having been completed over 2002-7 – will be built entirely underground. The Cityringen project also includes construction of 17 box stations to mostly standard design.
Civil works are to be undertaken in two or three packages of tunnels and stations construction. The client, Metroselskabet, is finalising plans for the packages. Tenders are to be called in mid-2009, contracts awarded in md-2010 and the entire project completed by 2018.
The client is also undertaking extra site investigation works over the next few months as there will be more saturated sand strata as well as the more familiar limestone encountered in the early phases of the metro development.
T&TI was told by Metroselskabet that four, possibly, five TBMs would be required for the project and that the client is considering taking more of the geological risk.
The client’s consultant for the civil works is a joint venture of Cowi, Arup & Systra.