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Diaphragm wall in the steelworks

Photo: Diaphragm wall in the steelworks – side view of the building site in the existing factory hall; on the left of the photo: a construction crane
Facts and Figures
Company PORR Bau GmbH
Principalvoestalpine AG
LocationLinz - Austria
Type Specialist civil engineering
Runtime06.2015 - 09.2015

Firmly founded in the soil ...

In the area of the CC8 continuous casting plant at the voestalpine steelworks in Linz, an 80cm-thick diaphragm wall with deep foundations was to be installed down to a depth of up to 19m. The jet grouting method was used to create the deep foundations in the area of the gantry crane supports. In total, PORR installed some 4,500m² of diaphragm wall using heavily reinforced cages with an overall weight of 455t (up to 220kg/m²). 

One of this project’s greatest challenges lay in the fact that trenching had to take place at restricted heights in the plant/industrial production area.