Drill rigs chosen for Finnish road tunnel

21 November 2013

Finnish-based infrastructure construction company, Lemminkäinen, has chosen Sandvik DT1131i tunnelling jumbos for the excavation of a road tunnel in Tampere, Finland, Sandvik announced recently.

The machines will excavate the 2.3km long bypass tunnel, a part of highway 12, between Santalahti and Naistenlahti areas. The Sandvik DT1131i is a computer-controlled three-boom tunnelling jumbo designed for the excavation of 20 - 183m2 mechanised long-hole drilling.

Construction work has begun and the tunnel is scheduled to open for public in 2017. The budget for the project is EUR 180M (USD 243.3M).

The Rantaväylä, "Lakeside Route", tunnel project aims at developing the central areas of the city of Tampere. The tunnel aims to decrease the common urban problems caused by the transfer traffic as well as enable the expansion of the city centre and residential areas by the lake Näsijärvi.

The Lakeside Route Tunnel is a part of the highway 12 in Finland. It will consist of two separate tunnels, each of which has two one-way traffic lanes. The tunnel access will be 14m in width and 7.5m in height. The total length of the tunnel will be 2.3km, of which 2.22km will be rock excavation. The remaining part will be concrete construction.

An alliance of the developer, the contractor and the designers will be responsible for the construction of the tunnel; the parties have signed a common agreement for the target costs and other key performance indicators as well as sharing of the risks in the project.