Underground railway track to link the Cologne-Bonn airport, Germany
Consortium Airport tunnel Cologne-Bonn lot 3
Wayss & Freytag Ingenieurbau AG,
E. Heitkamp GmbH, F.C. Trapp AGComplete dewatering (24h-duty) carried out by:
Smet GWT N.V., Dessel, Belgien
Biergans Pumpen-Vertrieb GmbH, Duisburg
Open dewatering by means of submersible pumps.
The groundwater generated is pumped off by several submersible pumps for abrasive water. 24-h on-snore-operation must be ensured. Currently a total of twenty KTZ21.5 and ten KTZ32.2 is in operation.