On characteristic values and the reliability-based assessment of dykes

On characteristic values and the reliability-based assessment of dykes

Hicks, M.A. (TU Delft Geo-engineering)
Varkey, D. (TU Delft Geo-engineering)
van den Eijnden, A.P. (TU Delft Geo-engineering)
de Gast, T. (TU Delft Geo-engineering)
Vardon, P.J. (TU Delft Geo-engineering)

2019

A case study involving the assessment and re-design of an existing dyke, founded on a layered soil, has compared deterministic analysis based on 5-percentile property values and a reliability-based random finite element analysis consistent with the requirements of Eurocode 7. The results show that a consideration of the spatial nature of soil variability generally leads to higher computed factors of safety and, for those dyke sections requiring remedial action, to more economic designs. Back-figured characteristic values are shown to be considerably higher than the 5-percentile soil properties; hence, a reduction in over-conservatism is achieved.

Characteristic values
dykes
Eurocode 7
slope reliability
spatial variability

http://resolver.tudelft.nl/uuid:eedb2102-bdc7-4cce-b38c-d4c72bfa8648

https://doi.org/10.1080/17499518.2019.1652918

2020-02-18

1749-9518

Georisk: assessment and management of risk for engineered systems and geohazards, 13 (4), 313-319

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.

Institutional Repository

journal article

© 2019 M.A. Hicks, D. Varkey, A.P. van den Eijnden, T. de Gast, P.J. Vardon