Tubbing Elements
In the past the sewer made of tubbing elements using the Tauber method was merely a protection pipe. When it was completed the media transportation pipelines made of corrosion resistant material were inserted. The use of POLYCRETE® tubbing elements completely made up of corrosion-resistant polymer concrete has made the inliner unnecessary.
The corrosion-resistant TAUBER TUNNEL SYSTEM:
The equipment used is an open-face driving shield. In most cases the soil is removed by a drawn blade. Under protection of the driving shield a pipe is assembled from three pre-fabricated POLYCRETE® segments called tubbings. This pipe is then used as a counter-support for the further shield drive. The difference between other pipe jacking systems and the Tauber tunneling system is that here the pipes need not be jacked through the soil by large hydraulic pressure. After assembly of the tubbing elements the pipe does not move any more.
The key parts of the TAUBER TUNNEL SYSTEM are the tubbing elements: Three identical polymer concrete elements that are 60 or 75 cm long with groove and tongue in axial direction are joined together to make up a stable pipe ring. Groove and tongue along the radial face ensure a flush tight joint with the previous pipe ring.
Download brochure "POLYCRETE®-Tübbings" (pdf)
