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Tunnelling starts on Norway’s Follo Line Project

Norwegian minister of transport and communication Ketil Sovik-Olsen attended a special event yesterday to mark the start of tunnelling on the Follo Line Project towards Oslo.

The tunnelling work will be the first time drill and split techniques have been used in Norway, according to project promoter Norwegian National Rail Administration.

The contract, being undertaken by Italy-based Società per Condotte d´ Acqua, is one of five EPC contracts for the 22km Follo Line which will connect Oslo Central Station with a new transport hub at Ski.

Condotte’s work will include conventional drill and blast excavation but drill and split has been selected for some sections where the rail route passes sensitive urban locations.

“Drill and split was chosen for the Follo Line due to the alignment of fragile surrounding infrastructure and existing tunnels,” said Follo Line project director Erik Smith.”Condotte has extensive experience directly relevant for this challenging scope of this scheme.”

Condotte is expected to complete its work in early 2018. The Follo Line is due to open at the end of 2021.

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