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Prof. Dr Eng. Paweł Popielski
Warsaw University of Technology

Professor at Warsaw University of Technology, specialist in hydraulic engineering, civil and environmental engineering. Head of the Department of Hydro Engineering and Hydraulics from 2014 to 2020, director of the Center for Geo and Hydrotechnical Analysis of the Institute of Applied Research of the Warsaw University of Technology from 2016 to 2023, and from 2020 to 2024, he held the position of Dean of the Faculty of Building Services, Hydroengineering, and Environmental Engineering.

His main areas of scientific interest are geotechnical problems in hydrotechnics and environmental engineering, assessment of the technical condition of building structures, including with the use of modern measurement methods, such as laser scanning, thermo-monitoring, fiber optic measurements, etc. He is a specialist in modelling the issues of water filtration in the ground medium in calculations and safety analysis of construction objects, as well as in the analysis of the impact of deep foundations on neighboring objects (including underground infrastructure) and ground water in urbanized environments, and the establishment of limit values for the conducted monitoring (both at the stage of construction and operation of the object). Head of several interdisciplinary teams in the development of expert reports and opinions on the technical condition of the existing underground infrastructure, as well as new investments carried out using no dig techniques. Co-author of the "acceptance guidelines" for CIPP liners.

Selected methods of monitoring collectors during modernization using trenchless technologies and later exploitation

This paper presents various methods for monitoring collectors during and after trenchless rehabilitation. It discusses a method that can be used to monitor the structural wall of an existing collector. In critical underground infrastructure, the assessment of structural safety and operational reliability is of paramount importance. Currently, modernized networks are not subject to continuous monitoring.
The proposed method enables continuous geometric monitoring of the trenchless modernization process as well as the installation’s condition during operation. It allows for the detection of cracks and deformations in the original collector structure. This is particularly important in urban areas (due to dynamic loads and changes in hydrogeological conditions) and regions affected by mining-induced subsidence.



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