The city of Rome is upgrading its public transportation network with the construction of the 3rd underground railway line. The Line C of Rome underground crosses the historic city centre with significant interferences with existing monuments and buildings of historic value. As a consequence, protective measures are needed to prevent damage to the most sensitive structures. To test the efficiency of pre-installed barriers in reducing tunnelling effects, a line of bored piles was pre-installed in the stretch between Amba Aradam and San Giovanni stations, close to a well instrumented green-field section. This paper presents the monitoring data from both the green-field section and the section where the barrier was installed and compares the observed behaviour with that computed by finite element back-analyses performed using three approaches to simulate tunnel excavation.
Mitigation of tunneling effects via preinstalled barriers: the case of Line C of Rome underground / Masini, Luca; Rampello, Sebastiano; Fantera, Laura; Romani, Eliano. - 2:(2021), pp. 197-205. (Intervento presentato al convegno Challenges and Innovations in Geomechanics, Proceedings of the 16th International Conference of IACMAG tenutosi a Torino, Italy) [10.1007/978-3-030-64518-2_24].
Mitigation of tunneling effects via preinstalled barriers: the case of Line C of Rome underground
Luca Masini
Primo
Writing – Original Draft Preparation
;Sebastiano RampelloSecondo
Writing – Review & Editing
;
2021
Abstract
The city of Rome is upgrading its public transportation network with the construction of the 3rd underground railway line. The Line C of Rome underground crosses the historic city centre with significant interferences with existing monuments and buildings of historic value. As a consequence, protective measures are needed to prevent damage to the most sensitive structures. To test the efficiency of pre-installed barriers in reducing tunnelling effects, a line of bored piles was pre-installed in the stretch between Amba Aradam and San Giovanni stations, close to a well instrumented green-field section. This paper presents the monitoring data from both the green-field section and the section where the barrier was installed and compares the observed behaviour with that computed by finite element back-analyses performed using three approaches to simulate tunnel excavation.File | Dimensione | Formato | |
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