To ensure a service life of at least 120 years for the upcoming 18km immersed tunnel between Lolland and Fehmarn, the quality of the tunnel elements has to be second to none.

To this end the contractor consortium, Femern Link Contractors, FLC, has produced a full-scale model of part of a segment comprising 1½ train tunnel tube 12m long. The trial casting lasting 30 hours was then carried out under realistic conditions.

An additional two full-scale trial castings are planned to be done. The main purpose of the full-scale trial casts is to test the process, materials and techniques, as well as gain vital experience prior to actual casting, which begins at the end of the year.