DSI Underground

Efficient Use of Forepoling Technology at the Arlinger Tunnel

The 1.35 km long Arlinger Tunnel is part of the first construction phase of the “Westtangente Pforzheim”, the connecting axis of the German federal roads 294 and 463 from the Black Forest to the motorway 8. After the completion of the Westtangente Pforzheim, the Arlinger Tunnel will contribute to a significant traffic relief of the city centre of Pforzheim.

The two-lane bi-directional tunnel with a cross-section of approximately 90 m², two breakdown bays, an operations centre, the rescue tunnel with a length of 1.1 km as well as four cross-passages were excavated for the most part using...

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