The main differences in terms of liners’ dimensioning according to the guidelines ATV-M 127-2, 2000 and DWA-A 143-2, 2015

After 15 years after the releases guidelines ATV-M 127-2, a German technical organization DWA decided to replace it with the new study, designated as a guideline DWA-A 143-2. Keeping the main principles of the computational approach, the new guidelines have a number of differences, which are worth to discuss due to the high popularity of the older studies. The conversance of the previous guidelines may help to solve the cases previously. Or it can give the effect in more precise calculation results, leading ultimately to make savings, e.g. due to the thickness of the liner.

dr inż. Bogdan Przybyła, Politechnika Wrocławska
Graduated from the Department of Civil Engineering, Wroclaw University of Technology. His doctoral thesis, dedicated to the evaluation and development of sewer lines construction in terms of reliability theory. He participated in research internships at universities in Germany (Technische Unversität Dresden i Technische Hochschule w Münster). Currently an assistant professor in the Department of Structural Mechanics and Municipal Engineering, Wroclaw University of Technology. He is a specialist in the technical condition assessment and rehabilitation of water pipes and sewage systems; an author of expertise works and numerous scientific and technical publications.