Dear Sir or Madam,

Once again it is time for a new chapter of the technical information system Trenchless Technology for Installation of Cables and Pipelines by Prof. Dr.-Ing. Dietrich Stein:

Jacking pipes constantly support the excavated cavity and, in the case of a single shell lining, they provide the structure of the pipeline. On this account the topic Pipe Materials and Joints is of vital importance, and the today published chapter of the reference book in the UNITRACC area Information* addresses this important topic.

To optimise the safety and economic efficiency of pipe jacking measures we recommend CoJack, a quality-assuring instrument for the monitoring of pipe jacking projects from the planning step to the approval of constructions. By means of special algorithms it is possible to accurately determine the constantly varying pipe stress during jacking processes.

Enjoy exploring the underground with UNITRACC.

Kind regards,

Dr.-Ing. Robert Stein
(UNITRACC Editor)

*Starter-Package is needed.

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