Fugro completes Fehmarnbelt geotechnical investigation

26 March 2021

Geo-data specialist Fugro has completed a nearshore geotechnical investigation for the Fehmarnbelt Tunnel which will connect Denmark and Germany by road and rail and become the world’s longest immersed tunnel.

The company has been involved on the project for the past 10 years, from early site investigation work up to the current geotechnical study. This latest phase included geotechnical site characterisation of the sub-seabed soil at both tunnel entrances and, on the Danish side, the production facility where the hollow concrete tunnel elements are being made.

Fugro deployed its Skate 3 jack-up platform; a custom-designed geotechnical spread; and a specialist data-acquisition team to perform core drilling and downhole cone penetration tests. The resulting data were then analysed to determine subsurface uncertainty to reduce the contractor’s and the client’s ground risk exposure by providing secured geotechnical design input parameters.

Femern Link Contractors, the consortium building the 18km-long tunnel, was the client for the work.