fischer anchors in the Brenner Base Tunnel

Europe's largest infrastructure project to date is in full swing. Since 2007, the Brenner Base Tunnel – the longest underground railway connection in the world – has been under construction. Completion is planned for 2027. As part of the new rail line from Munich to Verona, freight and passengers are transported faster through the tunnel. Fischer heavy-duty anchors are used to securely fasten permanent and temporary attachments.

Bring people to their destination faster, shift freight traffic from road to rail, and reduce emissions. With these goals in mind, the Brenner Base Tunnel opens up entirely new dimensions. It stretches 55 km from Innsbruck (Austria) to Franzensfeste (Italy). It also connects to the already existing Innsbruck railway bypass. Including this section, the Alpine crossing is a total of 64 km long.
This makes it the longest underground railway connection in the world. Compared to the old Brenner railway line with inclines and declines, the tunnel runs flat. This is intended to increase speeds and capacities.

Property Profile

Construction period:

2007 to 2027

Length:

64 km

Object type:

Tunnel

Project Responsibility:

Salini Impregilo & Strabag

What has been fastened with fischer products:

Reinforcing bars, running rails, formwork elements, holding devices for supply lines and much more

The centerpiece of the century construction is two main tunnel tubes each with a diameter of 8.1 m, running 70 m apart side by side. They are each equipped with a single track for one-way traffic. At intervals of 333 m, cross passages connect the two main tunnel tubes, which are used as escape routes. In addition, emergency stops increase safety. Four side access tunnels lead to the ground surface. Additional connecting tubes provide further connectivity. 12 m below the main tunnel tubes and centered between them is an exploration tunnel with a diameter of at least 5 m. This primarily serves for rock mass exploration.

Reinforcing bars, guide rails, formwork elements, support devices for utility lines, and much more are securely and firmly fixed with fischer fastening systems. Among other things, the fischer injection mortar FIS SB is used. This achieves a very high load level in uncracked concrete, hardens quickly, and allows variable anchoring depths for shorter installation time and reduced material usage. In the Brenner Base Tunnel, the FIS SB is used to create reliable reinforcement connections in the partition walls of the cross passages. Additionally, it is installed with various threaded rods, for example, for the rail fastening of the formwork carriage. For temporary fastenings, the builders also use the high-performance fischer ULTRACUT FBS II concrete screws. These are extremely installation-friendly, very flexible due to three screw-in depths, and suitable for multiple uses – for example, in formwork construction. Practical nail anchors from fischer are also used for temporary fixings.

fischer dowels in the Brenner Base Tunnel

Property Profile

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