Impact on subway facilities and underground infrastructure – the role of monitoring and observational methods in assessing and forecasting the impact of new projects
When assessing the impact of new projects on adjacent structures, it is necessary to determine the current condition of the monitored structure and to conduct preliminary measurements (prior to the start of construction). Monitoring is often carried out using non-standard techniques and measurement point locations due to the specific nature of the work or the condition of the structure. This presentation will present experiences from several projects carried out in the center of Warsaw in the vicinity of metro stations and tunnels, as well as other underground infrastructure. The assumptions and components of various monitoring systems used during project implementation will be discussed, enabling the verification of calculations and the prediction of impacts on underground infrastructure. One of the analyzed projects was partially founded on the metro station structure using a grating to transfer loads to the station ceiling. The monitoring method used to verify that the permissible additional loads transferred to the metro station ceiling by the project were not exceeded will be discussed.
The use of observational methods and monitoring to predict the impact of investments located in the immediate vicinity of underground infrastructure. Professor at the Warsaw University of Technology, specialist in hydrotechnical construction, water engineering, and the environment. In 2014–2020, he was the Head of the Department of Water Engineering and Hydraulics, and in 2016–2023 , he was the director of the Center for Geo and Hydrotechnical Analysis at the Institute of Applied Research at the Warsaw University of Technology (IBS PW), and in the 2020–2024 term, he served as Dean of the Faculty of Building Installations, Hydrotechnology and Environmental Engineering at the Warsaw University of Technology. He is a member of the Hydrotechnical Structures Section and the High Buildings Team of KILiW PAN, as well as a member of Technical Committee 206 Observational Method; International Society for Soil Mechanics and Geotechnical Engineering (TC 206 Observational Method; International Society for Soil Mechanics and Geotechnical Engineering).
He deals with the application of advanced numerical simulations in geotechnics, hydrotechnics, and environmental engineering, as well as the assessment of the technical condition of buildings (including underground infrastructure and hydrotechnical facilities) using modern measurement methods, such as laser scanning, thermomonitoring, fiber optic measurements, etc. He is a specialist in the field of numerical modeling of water filtration in soil, safety analysis of buildings, and the impact of deep foundations on neighboring structures and groundwater in urban environments, including the determination of limit values for monitoring (both during construction and operation of the facility). He is a pioneer in taking into account changes in groundwater conditions and phenomena occurring in the ground caused by water filtration (filtration deformations: erosion, suffusion, clogging) in calculations and numerical analyses concerning the safety of buildings. He is the co-organizer and executor of the first measurements in Poland of the tightness of slotted walls using the thermomonitoring method and the use of fiber optic measurements for monitoring underground infrastructure – large-diameter collectors.