Analysis of the technical condition of the sewage collector with the use of numerical simulation

This article presents a comprehensive analysis of the technical condition of the sewage collector located under Krakowska Avenue in Warsaw. The cross section of the collector is an extended ovoid with the dimensions of 1400 × 800 mm. Current operational problems as well as the reasons for specific faults and failures were discussed. The numerical models generated according to the collected data and the technical documentation were presented. Boundary and initial conditions taken into account in the analysis process and the assumed calculation scenarios were also described. The results obtained as well asthe considered modernization projects, along with selected optimal technical solutions, were discussed.