Thorsten Schulte

Rehabilitation of severely damaged pipes and sewers using pipe bursting and TIP method


Nowadays, even badly damaged water and wastewater pipes can be rehabilitated. Two trenchless solutions are available: burst lining and the TIP (tight-in-pipe) method. With the burst lining method, pipes are renewed in the same route without trenching. The existing pipe is destroyed and displaced into the surrounding soil. At the same time, a new pipe with the same or a larger diameter is laid. The TIP method is also an innovative solution for the rehabilitation of severely damaged pipes with deformations of up to 25 %. The TIP method with prefabricated pipes is mainly used for the rehabilitation of gravity sewers. Prefabricated new short or long pipes with a slight reduction in the pipe cross-section are installed in the main pipe, leaving only an annular gap. With this method, the connecting pipes can also be laid trenchlessly, which is another advantage of this technique.



Thorsten Schulte is Trenchless Development Manager at TRACTO. He has more than 25 years of experience in trenchless technologies and the installation and rehabilitation of underground network infrastructure for all application areas. After completing his business studies, he also trained as an innovation manager and certified technical trainer. He is a member of the GSTT Board and Chairman of the GSTT International Business Development Working Group. He is also a member of the RSV working group on pipe bursts and sustainability.


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