Sewage Collector Liège
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.
