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Avalanche Gallery Celleswald

construction method: open-cut construction method, geometry of a circle

company: Teerag Asdag AG

year: 2013

description: 

At the connecting road between Samnaun to the Reschenstreet, situated in the upper Inn Vally, the already existing "Annatunnel" was extended by the 207 m long avanlanche gallery "Celleswald". The aim was to reduce the road blockings due to avalanche risks during the winter season. The avalanche gallery was constructed as open-arched cross-section with V-shaped piles at the downhill side. During the construction time the traffic was conducted alternately through the construction site. The circular shaped formwork carriage with H20 girders was completely equipped with formwork vibrators at the inner formwork side. At the base area of the external formwork an additional row of vibrators was mounted in order to guarantee secure and excelent compaction of the 80cm thick walls. Two to three segements were poured weekly - a great effort with regard to the traffic passing through the construction side. The surface quality of the compacted concrete was excellent and therefore provided best resistance against frost and de-icing. Early enough for the winter season 2013, the new gallery could protect the traffic from masses of snow.


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