Sewage Collector Liège
Belgium, Lüttich

If a reinforced concrete pipe with a diameter of 2,200mm has to be installed under a concrete plant with an overburden of only three meters, then the scope of work is clearly defined: Avoid settlement! And if the geology is characterized by groundwater bearing sand and gravel it is clear that the job is done the best by a Herrenknecht AVND.

A one-kilometer-long sewage pipeline was installed in Liege by an AVND2000AB using the pipe jacking method - without any settlement due to the precisely adjustable compressed air bubble that securely supported the tunnel face.

Data Sheet

Country, Location

Belgium, Lüttich






Soft ground
Heterogeneous ground
Sand, gravel, groundwater

Tunnelling length

1,098 m

Machine Data

1x AVN Machine:
Diameter: 2,640 mm
Lining method: Pipe jacking
Cutterhead power: 315 kW
Torque: 780 kNm

Your contact person Contact us

Steffen Dubé President and General Manager Herrenknecht Tunnelling Systems USA Inc.
Gerhard Goisser Commercial Manager Herrenknecht Tunnelling Systems USA, Inc.