Affiliation:
1. Geosystems Engineering, School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, GA 30332-0355, USA.
Abstract
An existing effective stress limit plasticity solution for piezocone penetration tests (CPTu) is calibrated to evaluate the effective stress friction angle ([Formula: see text]) for undrained conditions for a variety of fine-grained soils ranging from natural lean to plastic clays and clayey silts from marine, alluvial, lacustrine, deltaic, and glaciofluvial origins. Data from 105 clay sites are compiled to examine the CPTu-interpreted [Formula: see text] values in comparison with laboratory benchmark values obtained from undrained consolidated anisotropic (CAUC) and undrained compression (CIUC) triaxial tests made on undisturbed samples. An approximate inversion of the theoretical solution is developed to allow profiles of [Formula: see text] to be evaluated with depth. Five well-documented case studies in Illinois, Louisiana, South Carolina, Ireland, and Massachusetts are presented to illustrate the application of the solution. Lastly, results from 1g chamber tests involving kaolin and kaolinitic–silica mixtures tested by miniature piezocone probes are shown for additional verification.
Publisher
Canadian Science Publishing
Subject
Civil and Structural Engineering,Geotechnical Engineering and Engineering Geology
Reference113 articles.
1. Åhnberg, H. 1995. Use of CPT tests in very soft soils. In Proceedings, International Symposium on Cone Penetration Testing, CPT’95, Linkoping. Vol.2.
2. Almeida, M.S.S., and Marques, M.E.S. 2003. The behaviour of Sarapuí soft clay. In Characterisation & engineering properties of natural soils, Vol. 1 (Singapore), Swets & Zeitlinger, Lisse, pp. 395–427.
3. Almeida, M.S.S., and Marques, M.E.S. 2013. Design and performance of embankments on very soft soils. CRC Press, Leiden, the Netherlands. 228 pp.
4. Test Method for Consolidated Undrained Triaxial Compression Test for Cohesive Soils
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