PSI - Issue 44

Available online at www.sciencedirect.com Structural Int grity Procedia 00 (2022) 000–000 Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2022) 000–000 Available online at www.sciencedirect.com ScienceDirect

www.elsevier.com/locate/procedia www.elsevier.com/locate/procedia

ScienceDirect

Procedia Structural Integrity 44 (2023) 323–330

© 2023 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the scientific committee of the XIX ANIDIS Conference, Seismic Engineering in Italy. © 2022 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license ( https://creativecommons.org/licenses/by-nc-nd/4.0 ) Peer-review under responsibility of the scientific committee of the XIX ANIDIS Conference, Seismic Engineering in Italy The seismic performance of earth dams is usu lly a sessed bas d on the xpected crest displacements induced by the soil d sification and the triggering of sli ing mechanis s. Nevertheless, a proper valuation of the eismic response of the dams ge erally involves he u e f advanced constitutive mod ls able to repro uce the dynamic soil respons . The calibration of the constitutive parameters is however a nontrivial ta k, as it requires a deep understanding of the mechanical response of the materials. When dealing with small earth dams, budget constrai ts often prevent a reliable geotechnical characterization of the soil , limiting in the common pr ctic the applicability of dynamic nu e simulations. T e performance of th dams is the fore ass ss d, at lea at a preliminary level, by employing simplified empirical relationship that link a seismic intensity measure to the expected crest settlement. This study fits within this framework, pr senting the results of the ReSba European proj ct for the French-Italian Alps area. Two small earth dams, object f exte sive geophysical and geotechnical surveys, are s lected based on a first-level screening m thodology. Advanced fully-coupled numerical simulations re perfor ed to inv stigate the seismic re p nse of dams. The results f the an lyses are then co ared to predictions obtained by employing empirical relationships to show the abilities, and the potential drawbacks, of the simplified relationships. © 2022 The Authors. Published by ELSEVIER B.V. This is an ope acces article under CC BY-NC-ND lic nse ( https://creativec mmons.org/licenses/by-nc-nd/4.0 ) Peer-review under responsibility of the scientific committee of the XIX ANIDIS Conference, Seismic Engineering in Italy XIX ANIDIS Conference, Seismic Engineering in Italy Simplified assessment of the seismic vulnerability of small earth dams Andrea Ciancimino a, *, Renato Maria Cosentini a , Francesco Figura a , Sebastiano Foti a a Department of Structural, Building and Geotechnical Engineering, Politecnico di Torino, Turin, 10129, Italy The seismic performance of earth dams is usually assessed based on the expected crest displacements induced by the soil densification and the triggering of sliding mechanisms. Nevertheless, a proper evaluation of the seismic response of the dams generally involves the use of advanced constitutive models able to reproduce the dynamic soil response. The calibration of the constitutive parameters is however a nontrivial task, as it requires a deep understanding of the mechanical response of the materials. When dealing with small earth dams, budget constraints often prevent a reliable geotechnical characterization of the soils, limiting in the common practice the applicability of dynamic numerical simulations. The performance of the dams is therefore assessed, at least at a preliminary level, by employing simplified empirical relationships that link a seismic intensity measure to the expected crest settlement. This study fits within this framework, presenting the results of the ReSba European project for the French-Italian Alps area. Two small earth dams, object of extensive geophysical and geotechnical surveys, are selected based on a first-level screening methodology. Advanced fully-coupled numerical simulations are performed to investigate the seismic response of the dams. The results of the analyses are then compared to predictions obtained by employing empirical relationships to show the abilities, and the potential drawbacks, of the simplified relationships. XIX ANIDIS Conference, Seismic Engineering in Italy Simplified assessment of the seismic vulnerability of small earth dams Andrea Ciancimino a, *, Renato Maria Cosentini a , Francesco Figura a , Sebastiano Foti a a Department of Structural, Building and Geotechnical Engineering, Politecnico di Torino, Turin, 10129, Italy Abstract Abstract

Keywords: Earth dam; Seismic Response; Seismic Performance; Effective stress analysis; Earthquake. Keywords: Earth dam; Seismic Response; Seismic Performance; Effective stress analysis; Earthquake.

* Corresponding author. Tel.: +390110904811 E-mail address: andrea.ciancimino@polito.it * Correspon ing author. Tel.: +390110904811 E-mail address: andrea.ciancimino@polito.it

2452-3216 © 2022 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the scientific committee of the XIX ANIDIS Conference, Seismic Engineering in Italy 2452-3216 © 2022 The Authors. Published by ELSEVIER B.V. This is an open access article under th CC BY-NC-ND license (https://creativecommons.org/licens s/by-nc-nd/4.0) Peer-review under responsibility of the scientific committee of the XIX ANIDIS Conference, Seismic Engineering in Italy

2452-3216 © 2023 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the scientific committee of the XIX ANIDIS Conference, Seismic Engineering in Italy. 10.1016/j.prostr.2023.01.042