Location
San Diego, California
Presentation Date
29 May 2010, 8:00 am - 9:30 am
Abstract
Assessment of potential strong ground motion within the city of Rome is crucial to preserve its millenary monumental heritage and protect its large urban settlements. Rome is located at a distance of some tens of kilometers from the central Apennines seismogenic zone, where earthquakes of tectonic origin and of a magnitude of up to 7.0 are expected. The geological bedrock is mainly represented by high - consistency fine grained marine sedimentary deposits Pliocene to lower Pleistocene aged and named Monte Vaticano Unit. An upper Pleistocene – Holocene succession of fluvial deposits partially fill the paleo-valley of the Tiber river and of its tributaries formed during the last glacial period (22-18 kyr) carving the seismic bedrock. This alluvial body is composed by an heterogeneous fining-upward succession up to 60m thick. To better quantify the expected ground shaking within the city of Rome, a multidisciplinary research activity has being carried out and: i) a detailed 3D engineering-geology model of the Tiber River alluvia was obtained based on new data from the metro lines under construction; ii) 1D and 2D numerical modeling were performed; iii) effects due to the nonlinear behavior of soil have also been taken into account. The preliminary results show that the heterogeneity of the alluvial fill mainly controls the local seismic response. In addition, an interesting result is the fact that 1D amplification estimates are pervasively higher than the 2D ones.
Department(s)
Civil, Architectural and Environmental Engineering
Meeting Name
5th International Conference on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics
Publisher
Missouri University of Science and Technology
Document Version
Final Version
Rights
© 2010 Missouri University of Science and Technology, All rights reserved.
Creative Commons Licensing
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.
Document Type
Article - Conference proceedings
File Type
text
Language
English
Recommended Citation
Bonilla, Fabian; Giacomi, Anna Chiara; Bozzano, Francesca; Lenti, Luca; Gélis, Celine; Martino, Salvatore; and Semblat, Jean-François, "Multidisciplinary Study of Seismic Wave Amplification in the Historical Center of Rome, Italy" (2010). International Conferences on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics. 8.
https://scholarsmine.mst.edu/icrageesd/05icrageesd/session03b/8
Included in
Multidisciplinary Study of Seismic Wave Amplification in the Historical Center of Rome, Italy
San Diego, California
Assessment of potential strong ground motion within the city of Rome is crucial to preserve its millenary monumental heritage and protect its large urban settlements. Rome is located at a distance of some tens of kilometers from the central Apennines seismogenic zone, where earthquakes of tectonic origin and of a magnitude of up to 7.0 are expected. The geological bedrock is mainly represented by high - consistency fine grained marine sedimentary deposits Pliocene to lower Pleistocene aged and named Monte Vaticano Unit. An upper Pleistocene – Holocene succession of fluvial deposits partially fill the paleo-valley of the Tiber river and of its tributaries formed during the last glacial period (22-18 kyr) carving the seismic bedrock. This alluvial body is composed by an heterogeneous fining-upward succession up to 60m thick. To better quantify the expected ground shaking within the city of Rome, a multidisciplinary research activity has being carried out and: i) a detailed 3D engineering-geology model of the Tiber River alluvia was obtained based on new data from the metro lines under construction; ii) 1D and 2D numerical modeling were performed; iii) effects due to the nonlinear behavior of soil have also been taken into account. The preliminary results show that the heterogeneity of the alluvial fill mainly controls the local seismic response. In addition, an interesting result is the fact that 1D amplification estimates are pervasively higher than the 2D ones.
