Reliability analysis of flood embankments taking into account a stochastic distribution of hydraulic loading
Amabile, Alessia and Cordão-Neto, Manoel P. and Polo, Fabio De and Tarantino, Alessandro (2016) Reliability analysis of flood embankments taking into account a stochastic distribution of hydraulic loading. E3S Web of Conferences, 9. ISSN 2267-1242 (https://doi.org/10.1051/e3sconf/20160919005)
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Abstract
Flooding is a worldwide phenomenon. Over the last few decades the world has experienced a rising number of devastating flood events and the trend in such natural disasters is increasing. Furthermore, escalations in both the probability and magnitude of flood hazards are expected as a result of climate change. Flood defence embankments are one of the major flood defence measures and reliability assessment for these structures is therefore a very important process. Routine hydro-mechanical models for the stability of flood embankments are based on the assumptions of steady-state through-flow and zero pore-pressures above the phreatic surface, i.e. negative capillary pressure (suction) is ignored. Despite common belief, these assumptions may not always lead to conservative design. In addition, hydraulic loading is stochastic in nature and flood embankment stability should therefore be assessed in probabilistic terms. This cannot be accommodated by steady-state flow models. The paper presents an approach for reliability analysis of flood embankment taking into account the transient water through-flow. The factor of safety of the embankment is assessed in probabilistic terms based on a stochastic distribution for the hydraulic loading. Two different probabilistic approaches are tested to compare and validate the results.
ORCID iDs
Amabile, Alessia ORCID: https://orcid.org/0000-0001-6682-1926, Cordão-Neto, Manoel P., Polo, Fabio De and Tarantino, Alessandro ORCID: https://orcid.org/0000-0001-6690-748X;-
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Item type: Article ID code: 60105 Dates: DateEvent12 September 2016Published18 March 2016AcceptedSubjects: Technology > Engineering (General). Civil engineering (General) > Environmental engineering Department: Faculty of Engineering > Civil and Environmental Engineering Depositing user: Pure Administrator Date deposited: 08 Mar 2017 11:57 Last modified: 22 Sep 2024 00:51 Related URLs: URI: https://strathprints.strath.ac.uk/id/eprint/60105