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Estimation of undrained shear strength in moderately OC clays based on field vane test data
Iok-Tong Ng; Ka-Veng Yuen; Le Dong
2016-01-30
Source PublicationACTA GEOTECHNICA
ISSN1861-1125
Volume12Issue:1Pages:145-156
Abstract

The 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 (σ′νσν′), preconsolidation pressure (σ′pσp′) 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 BySCIE
Language英語English
WOS Research AreaEngineering
WOS SubjectEngineering, Geological
WOS IDWOS:000393034300009
PublisherSPRINGER HEIDELBERG
The Source to ArticleWOS
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Cited Times [WOS]:9   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionFaculty of Science and Technology
Corresponding AuthorIok-Tong Ng
AffiliationDepartment of Civil and Environmental Engineering, Faculty of Science and Technology, University of Macau, Taipa, Macao SAR, China
First Author AffilicationFaculty of Science and Technology
Corresponding Author AffilicationFaculty of Science and Technology
Recommended Citation
GB/T 7714
Iok-Tong Ng,Ka-Veng Yuen,Le Dong. Estimation of undrained shear strength in moderately OC clays based on field vane test data[J]. ACTA GEOTECHNICA,2016,12(1):145-156.
APA Iok-Tong Ng,Ka-Veng Yuen,&Le Dong.(2016).Estimation of undrained shear strength in moderately OC clays based on field vane test data.ACTA GEOTECHNICA,12(1),145-156.
MLA Iok-Tong Ng,et al."Estimation of undrained shear strength in moderately OC clays based on field vane test data".ACTA GEOTECHNICA 12.1(2016):145-156.
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