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Estimation of undrained shear strength in moderately OC clays based on field vane test data
Ng, Iok-Tong; Yuen, Ka-Veng; Dong, Le
2017-02
Source PublicationACTA GEOTECHNICA
ISSN1861-1125
Volume12Issue:1Pages:145-156
AbstractThe undrained shear strength (s(u)) of cohesive soils is a crucial parameter for many geotechnical engineering applications. Due to the complexities and uncertainties associated with laboratory and in situ tests, it is a challenging task to obtain the undrained shear strength in a reliable and economical manner. In this study, a probabilistic model for the s(u) of moderately overconsolidated clays is developed using the Bayesian model class selection approach. The model is based on a comprehensive geotechnical database compiled for this study with field measurements of field vane strength (s(u)), plastic limit (PL), natural water content (W-n), liquid limit (LL), vertical effective overburden stress (sigma'(nu)), preconsolidation pressure (sigma'(p)) and overconsolidated ratio (OCR). Comparison study shows that the proposed model is superior to some well-known empirical relationships for OC clays. The proposed probabilistic model not only provides reliable and economical estimation of s(u) but also facilitates reliability-based analysis and design for performance-based engineering applications.
KeywordBayesian inference Empirical correlation Field vane test Model class selection Overconsolidated clay Undrained shear strength
DOI10.1007/s11440-016-0433-0
URLView the original
Indexed BySCI
Language英语
WOS Research AreaEngineering
WOS SubjectEngineering, Geological
WOS IDWOS:000393034300009
PublisherSPRINGER HEIDELBERG
The Source to ArticleWOS
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Cited Times [WOS]:7   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionUniversity of Macau
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GB/T 7714
Ng, Iok-Tong,Yuen, Ka-Veng,Dong, Le. Estimation of undrained shear strength in moderately OC clays based on field vane test data[J]. ACTA GEOTECHNICA,2017,12(1):145-156.
APA Ng, Iok-Tong,Yuen, Ka-Veng,&Dong, Le.(2017).Estimation of undrained shear strength in moderately OC clays based on field vane test data.ACTA GEOTECHNICA,12(1),145-156.
MLA Ng, Iok-Tong,et al."Estimation of undrained shear strength in moderately OC clays based on field vane test data".ACTA GEOTECHNICA 12.1(2017):145-156.
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