Safety margin from characteristic values in settlement calculations of embankments on clay

dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorLopez Ramirez, Alejandraen_US
dc.contributor.authorLöfman, Monicaen_US
dc.contributor.authorKorkiala-Tanttu, Leenaen_US
dc.contributor.departmentDepartment of Civil Engineeringen
dc.contributor.groupauthorMineral Based Materials and Mechanicsen
dc.contributor.organizationDepartment of Civil Engineeringen_US
dc.date.accessioned2021-12-15T07:21:41Z
dc.date.available2021-12-15T07:21:41Z
dc.date.issued2022-12-01en_US
dc.description.abstractSettlement calculations in serviceability limit state (SLS) design of embankments require the estimation of characteristic values of soil properties to account for different sources of uncertainty. The upcoming revised version of EN 1997-1:2004 (Eurocode 7) presents a statistically based equation to determine characteristic values of soil properties with the aim of providing a more consistent safety margin. The aim of this study is to quantify the safety margin in settlement calculations using this equation and performing probabilistic analyses. Four different cases of embankments on soft soil with different soil conditions were considered, including significant non-linear stress-strain behaviour. This allowed evaluation of the consistency of the safety margin from statistically derived characteristic values for different soil conditions. Probabilistic analyses were performed using Monte Carlo simulations to determine the statistics of total settlements. The safety margin was then defined based on the distance between the settlement from characteristic values and the mean settlement value of the simulations. The quantified safety margin was not consistent among the cases, which may be related to varying levels of non-linear compressibility and degree of consolidation. Moreover, for some cases, the safety margin might be too conservative for SLS design of embankments.en
dc.description.versionPeer revieweden
dc.format.mimetypeapplication/pdfen_US
dc.identifier.citationLopez Ramirez, A, Löfman, M & Korkiala-Tanttu, L 2022, ' Safety margin from characteristic values in settlement calculations of embankments on clay ', PROCEEDINGS OF THE INSTITUTION OF CIVIL ENGINEERS: GEOTECHNICAL ENGINEERING, vol. 175, no. 6, pp. 605-617 . https://doi.org/10.1680/jgeen.21.00022en
dc.identifier.doi10.1680/jgeen.21.00022en_US
dc.identifier.issn1353-2618
dc.identifier.issn1751-8563
dc.identifier.otherPURE UUID: 42a71789-0d5f-4263-aa2e-903092f3ad13en_US
dc.identifier.otherPURE ITEMURL: https://research.aalto.fi/en/publications/42a71789-0d5f-4263-aa2e-903092f3ad13en_US
dc.identifier.otherPURE LINK: http://www.scopus.com/inward/record.url?scp=85119481421&partnerID=8YFLogxKen_US
dc.identifier.otherPURE FILEURL: https://research.aalto.fi/files/96612680/jgeen.21.00022.pdfen_US
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/111564
dc.identifier.urnURN:NBN:fi:aalto-2021121510705
dc.language.isoenen
dc.publisherICE Publishing Ltd.
dc.relation.ispartofseriesPROCEEDINGS OF THE INSTITUTION OF CIVIL ENGINEERS: GEOTECHNICAL ENGINEERINGen
dc.rightsopenAccessen
dc.subject.keywordcodes of practiceen_US
dc.subject.keywordstandards/embankments/risken_US
dc.subject.keywordprobability analysisen_US
dc.titleSafety margin from characteristic values in settlement calculations of embankments on clayen
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
dc.type.versionpublishedVersion

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