Print Email Facebook Twitter On the reliability assessment of a controlled dyke failure Title On the reliability assessment of a controlled dyke failure Author de Gast, T. (TU Delft Geo-engineering) Hicks, M.A. (TU Delft Geo-engineering) van den Eijnden, A.P. (TU Delft Geo-engineering) Vardon, P.J. (TU Delft Geo-engineering) Date 2020 Abstract A reliability-based analysis framework, accounting for uncertainty arising from the spatial variability of soil properties, has been validated for the controlled, well-instrumented slope failure of an historic dyke in the Netherlands. Using soil property statistics derived from the results of laboratory and cone penetration test (CPT) data for the different soil layers at the site, the dyke was analysed for the initial (i.e. operating) conditions, as well as for the later stage of the test leading up to failure. The computed probabilities of failure and back-figured factors of safety were consistent with the point at which failure occurred in the test, as was the range of possible failure mechanisms. The uncertainty in the stability assessment was reduced by considering the spatial nature of the soil variability, and by conditioning analyses to CPT measurement data. It is shown that the reliability-based approach enables more informed stability assessments that could make the difference between a dyke being assessed as safe or requiring costly improvement. Subject EmbankmentsFull-scale testsStatistical analysisFinite-element modellingFailure To reference this document use: http://resolver.tudelft.nl/uuid:ea93fb68-abf0-45e5-9fe6-e991916273e2 DOI https://doi.org/10.1680/jgeot.19.SiP.003 Embargo date 2021-06-16 ISSN 0016-8505 Source Geotechnique: international journal of soil mechanics, 71 (11), 1028-1043 Bibliographical note Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public. Part of collection Institutional Repository Document type journal article Rights © 2020 T. de Gast, M.A. Hicks, A.P. van den Eijnden, P.J. Vardon Files PDF jgeot.19.sip.003.pdf 1.57 MB Close viewer /islandora/object/uuid:ea93fb68-abf0-45e5-9fe6-e991916273e2/datastream/OBJ/view