Print Email Facebook Twitter The effect of interactions between failure mechanisms on the reliability of flood defenses Title The effect of interactions between failure mechanisms on the reliability of flood defenses Author Pol, J.C. (TU Delft Hydraulic Structures and Flood Risk; HKV Lijn in Water) Kindermann, P.E. (HKV Lijn in Water) van der Krogt, M.G. (TU Delft Hydraulic Structures and Flood Risk; Deltares) van Bergeijk, Vera M. (University of Twente) Remmerswaal, G. (TU Delft Geo-engineering; Deltares) Kanning, W. (TU Delft Hydraulic Structures and Flood Risk; Deltares) Jonkman, Sebastiaan N. (TU Delft Hydraulic Structures and Flood Risk) Kok, M. (TU Delft Hydraulic Structures and Flood Risk; HKV Lijn in Water) Date 2023 Abstract Structural reliability analysis often considers failure mechanisms as correlated but non-interacting processes. Interacting failure mechanisms affect each others performance, and thereby the system reliability. We describe such interactions in the context of flood defenses, and analyze under which conditions such interactions have a large impact on reliability using a Monte Carlo-based quantification method. We provide simple examples and an application to levee failure due to landward slope instability and backward erosion piping (BEP). The examples show that the largest interaction effects are expected when the trigger mechanism is relatively likely to occur and the affected mechanism has a relatively large contribution to the system reliability. For the studied levee example, interactions between slope instability and BEP increased the failure probability up to a factor 4. Implications for the assessment and design of flood defenses are discussed. Subject ReliabilityInteractionFailure mechanismsFlood defensesSlope instabilityBackward erosion piping To reference this document use: http://resolver.tudelft.nl/uuid:0393955e-d3ac-475e-b37a-dc1733d2e810 DOI https://doi.org/10.1016/j.ress.2022.108987 ISSN 0951-8320 Source Reliability Engineering & System Safety, 231 Part of collection Institutional Repository Document type journal article Rights © 2023 J.C. Pol, P.E. Kindermann, M.G. van der Krogt, Vera M. van Bergeijk, G. Remmerswaal, W. Kanning, Sebastiaan N. Jonkman, M. Kok Files PDF 1_s2.0_S0951832022006020_main.pdf 4.98 MB Close viewer /islandora/object/uuid:0393955e-d3ac-475e-b37a-dc1733d2e810/datastream/OBJ/view