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Completion of the world's longest immersed tunnel is scheduled for 2029.
89 tunnel elements (each 217m long, 42.2m wide and 8.9m high) will be manufactured in a factory near Rødbyhavn (Denmark) specially built for the construction of the tunnel. Each of these elements weighs 73,500 tons. Boats tow the floating elements to their position after completion. By flooding ballast tanks, the elements are lowered into a trench, previously excavated in the seabed, and assembled at a depth of 40m.
Both, the aggregate feeding and the concrete batching plants (three in total), are equipped with Simma control system. The feeding of the aggregates allows a complete tracking of the individual batches of aggregates from the ship, via the main aggregate landfill to the individual silos and the production data of the tunnel elements. The concrete batching plants are also equipped with the Simma heating and cooling system for aggregates. In addition to the control systems, the Simma CMS with order management, stock management, laboratory and invoicing is also used. All delivery tickets are digital and managed via the SimmaApp.
Photocredit: Femern A/S
