An improved semi-analytical method for 3D slope reliability assessments

An improved semi-analytical method for 3D slope reliability assessments

Varkey, D. (TU Delft Geo-engineering)
Hicks, M.A. (TU Delft Geo-engineering)
Vardon, P.J. (TU Delft Geo-engineering)

2019

An improved semi-analytical method for calculating the reliability of 3D slopes with spatially varying shear strength parameters is proposed. The response of an existing semi-analytical method has been compared with that of the computationally more intensive, but more general, random finite element method (RFEM), demonstrating that the simpler method underestimates the failure probability. An alternative relationship for the expected failure length and two correction factors are proposed, which modify the original formulation of the simpler method. The proposed approach gives substantially improved results that compare favourably with those obtained by RFEM, and therefore provides a more accurate simplified solution.

Finite element analysis
Heterogeneity
Random fields
Slope stability
Three dimensional

http://resolver.tudelft.nl/uuid:f87bf288-f10f-44ef-8576-78d68c0b5299

https://doi.org/10.1016/j.compgeo.2018.12.020

2019-09-28

0266-352X

Computers and Geotechnics, 111, 181-190

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 D. Varkey, M.A. Hicks, P.J. Vardon