Reliability-Based Partial Factors Considering Spatial Variability of Strength Parameters

Divya Varkey; Michael A. Hicks; Abraham P. van den Eijnden

doi:10.1007/978-3-031-12851-6_36

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

Geo-engineering

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-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 language	English
Title of host publication	Challenges and Innovations in Geomechanics
Subtitle of host publication	Proceedings of the 16th International Conference of IACMAG
Editors	Marco Barla, Alessandra Insana, Alice Di Donna, Donatella Sterpi
Publisher	Springer Science
Pages	299-304
Number of pages	6
Volume	3
ISBN (Print)	9783031128509
DOIs	https://doi.org/10.1007/978-3-031-12851-6_36
Publication status	Published - 2023
Event	6th International Conference of the International Association for Computer Methods and Advances in Geomechanics, IACMAG 2022 - Turin, Italy Duration: 30 Aug 2022 → 2 Sep 2022

Publication series

Name	Lecture Notes in Civil Engineering
Volume	288 LNCE
ISSN (Print)	2366-2557
ISSN (Electronic)	2366-2565

Conference

Conference	6th International Conference of the International Association for Computer Methods and Advances in Geomechanics, IACMAG 2022
Country/Territory	Italy
City	Turin
Period	30/08/22 → 2/09/22

Bibliographical note

Accepted author manuscript

Keywords

Dykes
Partial factors
Random fields
Reliability
Spatial variability

Access to Document

10.1007/978-3-031-12851-6_36

Cite this

Varkey, D., Hicks, M. A., & van den Eijnden, A. P. (2023). Reliability-Based Partial Factors Considering Spatial Variability of Strength Parameters. In M. Barla, A. Insana, A. Di Donna, & D. Sterpi (Eds.), Challenges and Innovations in Geomechanics : Proceedings of the 16th International Conference of IACMAG (Vol. 3, pp. 299-304). (Lecture Notes in Civil Engineering; Vol. 288 LNCE). Springer Science. https://doi.org/10.1007/978-3-031-12851-6_36

Varkey, Divya ; Hicks, Michael A. ; van den Eijnden, Abraham P. / Reliability-Based Partial Factors Considering Spatial Variability of Strength Parameters. Challenges and Innovations in Geomechanics : Proceedings of the 16th International Conference of IACMAG. editor / Marco Barla ; Alessandra Insana ; Alice Di Donna ; Donatella Sterpi. Vol. 3 Springer Science, 2023. pp. 299-304 (Lecture Notes in Civil Engineering).

@inproceedings{473f553869444e808991971c2411ff14,

title = "Reliability-Based Partial Factors Considering Spatial Variability of Strength Parameters",

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.",

keywords = "Dykes, Partial factors, Random fields, Reliability, Spatial variability",

author = "Divya Varkey and Hicks, {Michael A.} and {van den Eijnden}, {Abraham P.}",

note = "Accepted author manuscript; 6th International Conference of the International Association for Computer Methods and Advances in Geomechanics, IACMAG 2022 ; Conference date: 30-08-2022 Through 02-09-2022",

year = "2023",

doi = "10.1007/978-3-031-12851-6_36",

language = "English",

isbn = "9783031128509",

volume = "3",

series = "Lecture Notes in Civil Engineering",

publisher = "Springer Science",

pages = "299--304",

editor = "Marco Barla and Alessandra Insana and {Di Donna}, Alice and Donatella Sterpi",

booktitle = "Challenges and Innovations in Geomechanics",

}

Varkey, D , Hicks, MA & van den Eijnden, AP 2023, Reliability-Based Partial Factors Considering Spatial Variability of Strength Parameters. in M Barla, A Insana, A Di Donna & D Sterpi (eds), Challenges and Innovations in Geomechanics : Proceedings of the 16th International Conference of IACMAG. vol. 3, Lecture Notes in Civil Engineering, vol. 288 LNCE, Springer Science, pp. 299-304, 6th International Conference of the International Association for Computer Methods and Advances in Geomechanics, IACMAG 2022, Turin, Italy, 30/08/22. https://doi.org/10.1007/978-3-031-12851-6_36

Reliability-Based Partial Factors Considering Spatial Variability of Strength Parameters. / Varkey, Divya ; Hicks, Michael A.; van den Eijnden, Abraham P.

Challenges and Innovations in Geomechanics : Proceedings of the 16th International Conference of IACMAG. ed. / Marco Barla; Alessandra Insana; Alice Di Donna; Donatella Sterpi. Vol. 3 Springer Science, 2023. p. 299-304 (Lecture Notes in Civil Engineering; Vol. 288 LNCE).

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

TY - GEN

T1 - Reliability-Based Partial Factors Considering Spatial Variability of Strength Parameters

AU - Varkey, Divya

AU - Hicks, Michael A.

AU - van den Eijnden, Abraham P.

N1 - Accepted author manuscript

PY - 2023

Y1 - 2023

N2 - 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.

AB - 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.

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KW - Partial factors

KW - Random fields

KW - Reliability

KW - Spatial variability

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A2 - Insana, Alessandra

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ER -

Varkey D , Hicks MA , van den Eijnden AP. Reliability-Based Partial Factors Considering Spatial Variability of Strength Parameters. In Barla M, Insana A, Di Donna A, Sterpi D, editors, Challenges and Innovations in Geomechanics : Proceedings of the 16th International Conference of IACMAG. Vol. 3. Springer Science. 2023. p. 299-304. (Lecture Notes in Civil Engineering). https://doi.org/10.1007/978-3-031-12851-6_36

Reliability-Based Partial Factors Considering Spatial Variability of Strength Parameters

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