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Oeresund Link between Denmark and Sweden
PERI "Formworking Machine" for World''s Largest Monolithic Tunnel
In the year 2000 the Øresund Project will link Denmark and Sweden with a four-lane motorway and double-track railway. In addition to two bridge approaches, an elevated bridge and an artificial island, an undersea tunnel is planned, which will be the biggest in the world in terms of volume.
PERI GmbH Weissenhorn´s extensive experience of constructing monolithic tunnels enabled the company to beat 15 competing international tenders. All of the planning, fabrication, transportation and assembly was accomplished in just eight months.
Construction technique
For the first time in tunnelling, the cantilever launching method used for bridges since the 60s is being employed.
Two stationary lines produced a total of twenty 176 m long tunnel elements. These were cast in eight separate 22.20 m segments.
The formwork
The segments were concreted in two hydraulically operated formwork assemblies, each consisting of one base, two outside and five tunnel forms, four guide girders, various temporary foundations and two stopends.
As with cantilever launching of a bridge, eight segments were concreted and launched in succession. The base and outside forms were stationary.
PERI formwork, scaffolding and tie systems are being used in the production of the bridge deck panels and the prefabrication of the monolithically concreted tunnel segments.
Construction facts:
Length of the tunnels: 3.6 km
Begin of tunnel construction: November 1996
Completion of tunnel: Begin 1999
OTC-Øresund Tunnel Contractors:
NCC AB (Sweden), The Laing Group (Great Britain), Boskalis Westminster Dredging B.V. (Netherland), Dumez-GTM (France), E. Phil & Son A/S (Denmark)
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| PERI Systems In Use |
DK - SK Tie system
GT 24
MULTIPROP Slab prop
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