de Silva, F, Fabozzi, S, Nikitas, N orcid.org/0000-0002-6243-052X et al. (2 more authors) (2019) Site Specific Seismic Performance of Circular Tunnels in Dry Sand. In: CNRIG 2019: Geotechnical Research for Land Protection and Development. 7th Italian National Congress of Geotechnical Researchers (CNRIG2019), 03-05 Jul 2019, Lecco, Italy. Springer, Cham , pp. 537-544. ISBN 978-3-030-21358-9
Abstract
Past earthquakes revealed that underground tunnel structures are exposed to seismic risk and their seismic vulnerability is mainly function of the tunnel structure technology, the soil-tunnel interaction developing during the seismic shaking and the intensity of the seismic event. Each of these factors plays an important role in terms of the probability of damage and loss of functionality due to the tunnel deformations induced by increments in internal forces. Currently, the fragility curves are among the most widespread methods for the rapid assessment of structural performance at different hazard levels, giving the probability of reaching a defined damage level with respect to a given level of seismic motion. In the present work, a recently developed approach to evaluate the seismic risk has been applied to circular tunnels, whereby the main focus is the expression of the failure annual rate through the convolution of the fragility of the system under investigation and the seismic hazard on site. In this way, a direct link between the performance of the structure with its measuring parameter is established. The procedure has been adopted for some reference tunnel sections of the Metro Line of Naples.
Metadata
Item Type: | Proceedings Paper |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © Springer Nature Switzerland AG 2020. This is a post-peer-review, pre-copyedit version of an conference paper published in CNRIG 2019: Geotechnical Research for Land Protection and Development. The final authenticated version is available online at: https://doi.org/10.1007/978-3-030-21359-6_57 |
Keywords: | Seismic risk; Seismic hazard; Fragility curves; Tunnel lining; 2D FDM |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Civil Engineering (Leeds) |
Funding Information: | Funder Grant number EPSRC EP/N03435X/1 |
Depositing User: | Symplectic Publications |
Date Deposited: | 16 Jul 2019 09:32 |
Last Modified: | 23 Jun 2020 00:38 |
Status: | Published |
Publisher: | Springer, Cham |
Identification Number: | 10.1007/978-3-030-21359-6_57 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:148613 |