info:eu-repo/semantics/conferenceProceedings shield TBM, urban tunnelling, numerical modelling, sensitivity analysis, ground settlement, structural response https://unilib.phaidrabg.rs/o:8710 doi:10.5937/SETC25004D ISBN: 978-86-82565-56-7 application/pdf 2485736 bytes Adaptation of tunnelling technical solutions to urban conditions: Case study Sava - Danube slope Tunnel Serbian Association for Tunnels and Underground Structures (ITA Serbia); Jaroslav Černi Water Institute, Belgrade eng 2025 Divac, Nikola Radovanović, Slobodan Šaponjić, Jovan Mirković, Uroš Mirković, Nikola Divac, Dejan Proceedings of the Southeastern Europe Tunnelling Conference (SETC-2025), 1-3 October 2025, Belgrade, Serbia startpage: 31 endpage: 42 Tunnelling in urban conditions is often met with demanding criteria for surface settlement control, the limitation which is arising from the fact that most of the urban area is occupied by structures which are sensitive to deformations, such as buildings, roads, communal infrastructure etc. Another important necessity in any project is to deliver the project in shortest amount of time possible. Temporary occupation of public areas for construction sites and traffic congestions alleviate social pressure which further emphasizes these requirements. If planned correctly, TBM technology promises to deliver on these requirements more readily than conventional tunnelling techniques. In this paper a Case study of Belgrade’s double tube traffic tunnels is presented, in which project design went through significant conceptual transition, led by the designer’s idea to change the technology of excavation from conventional to TBM, as well as to adjust the project in multiple ways to accommodate for this major turn of tides. Most notable historic background of the project is presented. Geotechnical profile of tunnels and data are shown and calculations for both TBM and conventional variants are presented and discussed. All rights reserved