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This twin-tube motorway tunnel with 2 lanes in each tube has an overall length of 2,4 km.
100 pouring sections per tube, each 24 m long were necessarry to cast the twin-tubes. By using 2 Doka forming carriages 48 m per week were casted. |
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Type of building:
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twin-tube motorway tunnel
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Method:
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cut and cover construction method
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Production:
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monolithic production
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Location:
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Wels, Austria
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Formwork system:
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Large-area formwork Top 50
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Duration of insert:
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1.5 years
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Purpose of the tunnel:
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motorway tunnel
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Section:
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rectangular
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inside width:
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9.5 m
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inside height:
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5.5 m
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Formed tunnel length:
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2,400 m
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Steps:
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100
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The Tunnel Steinhaus was built in cut and cover construction method. Because of the ground water the whole section was casted in one pour (= "White tank" - i.e. as a water impermeable body of concrete with no additional impervious external skin).
All formwork movements were controlled by a central steering unit
(- stripping of bottom panels, pulling back of wall panels and moving to the next pouring step).
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Strabag AG
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Organisation in Country:
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Österreichische Doka
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Department Amstetten:
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Tunnel Expertise Centre
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Project Manager:
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Mr. Alois Schoißwohl
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Products in use |
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