Reliability-Based Partial Factors Considering Spatial Variability of Strength Parameters

Divya Varkey*, Michael A. Hicks, Abraham P. van den Eijnden

*Corresponding author for this work

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

Abstract

The stability of six regional dyke cross-sections in the Netherlands was re-assessed using the random finite element method (RFEM), which explicitly accounts for the spatial variability of strength parameters. The RFEM assessments of the cross-sections were shown to result in significantly narrower response distributions than those obtained by ignoring the spatial variability, and therefore would result in more economical designs. Given the complexity of RFEM for applications in daily engineering practice, the results obtained from the re-assessments of the six dyke cross-sections were used to propose partial factors that can be used in practice to achieve the desired reliability levels for regional dykes. When applied in a conventional semi-probabilistic assessment of a dyke cross-section, these partial factors would result in the same level of reliability as would have been obtained by carrying out an RFEM analysis of the same cross-section.

Original languageEnglish
Title of host publicationChallenges and Innovations in Geomechanics
Subtitle of host publicationProceedings of the 16th International Conference of IACMAG
EditorsMarco Barla, Alessandra Insana, Alice Di Donna, Donatella Sterpi
PublisherSpringer Science
Pages299-304
Number of pages6
Volume3
ISBN (Print)9783031128509
DOIs
Publication statusPublished - 2023
Event6th International Conference of the International Association for Computer Methods and Advances in Geomechanics, IACMAG 2022 - Turin, Italy
Duration: 30 Aug 20222 Sep 2022

Publication series

NameLecture Notes in Civil Engineering
Volume288 LNCE
ISSN (Print)2366-2557
ISSN (Electronic)2366-2565

Conference

Conference6th International Conference of the International Association for Computer Methods and Advances in Geomechanics, IACMAG 2022
Country/TerritoryItaly
CityTurin
Period30/08/222/09/22

Bibliographical note

Accepted author manuscript

Keywords

  • Dykes
  • Partial factors
  • Random fields
  • Reliability
  • Spatial variability

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