Model uncertainties in "terzaghi and peck" methods for estimating settlement of footings on sand

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dc.contributor.authorAkbas S.O.
dc.contributor.authorKulhawy F.H.
dc.date.accessioned2024-07-22T08:20:33Z
dc.date.available2024-07-22T08:20:33Z
dc.date.issued2010
dc.description.abstractThe Terzaghi and Peck (1948) method was the first for predicting the settlement of footings on sand using standard penetration test blow counts (N values). Over the following 26 years, various modifications to this basic method were suggested. Herein, an extensive database of 426 settlement case histories is used to assess the model factors for this family of methods. The uncertainty of the model factors is characterized using the coefficient of variation. Considering the model factor as a random variable, the common "log-normality" assumption is investigated critically. The impact of model uncertainty on the reliability of settlement estimations is discussed, and criteria are given to assess their accuracy and conservatism. For settlement prediction, the uncertainty from the model factor is most influential. The results indicate a low accuracy for all of the methods considered. © 2010 ASCE.
dc.identifier.DOI-ID10.1061/41095(365)212
dc.identifier.issn08950563
dc.identifier.urihttp://akademikarsiv.cbu.edu.tr:4000/handle/123456789/18199
dc.language.isoEnglish
dc.subjectEstimation
dc.subjectGeologic models
dc.subjectRandom variables
dc.subjectSettlement of structures
dc.subjectCase history
dc.subjectCoefficient of variation
dc.subjectFootings
dc.subjectFoundation settlement
dc.subjectModel factors
dc.subjectModel uncertainties
dc.subjectN value
dc.subjectSettlement prediction
dc.subjectStandard penetration test blow counts
dc.subjectUncertainty analysis
dc.titleModel uncertainties in "terzaghi and peck" methods for estimating settlement of footings on sand
dc.typeConference paper

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