Hej – it goes down!
Directly at Vienna's Westbahnhof, where the “Blue House” once stood, is now being built Austria's first IKEA city store. Due to the inner-city location and the subway line running beneath the construction site, the basement must be built using a cover construction.
In order not to relieve the underground tube too much from the excavation and to build it with little deformation, excavation, floor slab and wall production must be carried out in small “finger“ – like sections. This construction method quickly got its own name in the planning team – the so-called “Ildefonso method”.
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