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Shear strength evaluation of preloaded stabilized dredged sediments using CPT
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Mining and Geotechnical Engineering.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Mining and Geotechnical Engineering.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Mining and Geotechnical Engineering.ORCID iD: 0000-0002-1365-8552
2014 (English)Conference paper, Oral presentation only (Refereed)
Abstract [en]

The undrained shear strength of preloaded stabilized dredged sediments increases with curing time. Evaluation of in-situ undrained shear strength using cone penetration test (CPT) data normally requires calibration of the CPT data with known undrained shear strength from vane shear test to obtain the cone factor, which is normally utilized in CPT empirical correlation to estimate the undrained shear strength. In this study, a new CPT empirical correlation for evaluation of in-situ undrained shear strength is presented. The proposed empirical correlation utilizes the effective vertical stress characteristic ratio to estimate the CPT induced stress, which was correlated to the in-situ undrained shear strength. The undrained shear strength computed using the proposed empirical correlation agrees reasonably well with the undrained shear strength estimated using the established empirical correlation at a large-scale field test.

Place, publisher, year, edition, pages
2014.
Keyword [en]
shear strength, CPT, Cone penetration test, vertical stress, shear stress, Failure analysis, failure mechanism, stress-characteristic, stabilization, dredged sediments, preloading, Civil engineering and architecture - Geoengineering and mining engineering
Keyword [sv]
Samhällsbyggnadsteknik och arkitektur - Geoteknik och gruvteknik
National Category
Geotechnical Engineering
Research subject
Soil Mechanics
Identifiers
URN: urn:nbn:se:ltu:diva-35248Local ID: 9b28afae-86b8-4284-9c2e-9241d77a4fabOAI: oai:DiVA.org:ltu-35248DiVA: diva2:1008500
Conference
International Symposium on Cone Penetration Testing : 12/05/2014 - 14/05/2014
Note
Godkänd; 2014; 20140304 (makusa)Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2017-11-25Bibliographically approved

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CiteExportLink to record
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