List of products by author: N. Riedel

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  Experience from the Ulriken tunnel, the first large TBM railroad tunnel in Norway

  Abstract: 6900 m of the 7690 m long Ulriken tunnel is being bored with a 9,3 m open gripper TBM, next to an existing tunnel excavated by drill and blast in the 1960s. The new tunnel will significantly increase the capacity on the heavily rail trafficked line between Bergen and Arna Skanska and Strabag was awarded to perform the contract in a joint venture, entering new land both from a technical and from...

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