News & Infos Heading of 2nd tube
Photo of northern heading of 2nd tube in squeezing rock with 4 rows of deformation elements
News & Infos Ventilation cavern - fresh air duct of 1st tube
Photo of the fresh air duct and ventilation in the ventilation cavern in the middle of the tunnel
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Tauern tunnel 1st and 2nd tube

Heavy squeezing phenomena required - among other measures - the use of ductile support elements. Thus deformations of the surrounding rock mass were enabled while stability of the shotcrete lining was maintained.

The refurbishment of the 1st tube included the construction of cross passages and new niches as well as the renovation of the ventilation system. These measures led to a much higher level of safety for road users and rescue forces.

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