The presentation will deal with those prevailing on the Polish market of trenchless pipe rehabilitation technologies. Discussed will be no-dig renovation technologies available on the market of gravity sewers and their applicability depending on the technical condition of the renovated section of the network. The main issue raised is the process of selection of lining strength carried out in accordance with the guidelines DWA-A 143-2. The main stage of the design process is to analyze the stability of lining inside the pipe. The condition of properly selected static parameters is properly carried out assessment of the technical condition as a result, the adoption of appropriate boundary conditions. Renovation should ensure optimization of economic and construction of the proposed solution.

dr inż. Tomasz Abel, Wroclaw University of Technology