Piezocone testing in Nordic soft clays: Comparison of high-quality databases

M. D’ignazio, B. Di Buò, T. Länsivaara, J. S. L’heureux, P. Paniagua, J. Selänpää

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

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Soft and sensitive clays are widespread in Scandinavia. Piezocone correlations for Norwegian clays have been previously proposed based on high-quality block samples from several sites. Recently, a large database of Finnish soft clays was compiled by Tampere University from piezocone measurements as well as high-quality laboratory tests on specimens from large tube samples. Finnish and Norwegian clays exhibit some differences in terms of basic properties. Norwegian clays show lower water content, lower organic content, higher silt content and lower plasticity than the clays from Finland. This may be linked to the source of the materials, their depositional and post-depositional processes that in turn impact on the mechanical behaviour. This paper aims to compare piezocone Norwegian and Finnish data with focus on strength and stress history. The database trends are compared for relevant engineering parameters. The data and its variability are critically discussed considering differences in geological history, basic properties, sampling techniques and disturbance.

Original languageEnglish
Title of host publicationCone Penetration Testing 2022 - Proceedings of the 5th International Symposium on Cone Penetration Testing, CPT 2022
EditorsGuido Gottardi, Laura Tonni
PublisherCRC Press
Number of pages7
ISBN (Electronic)9781003308829
ISBN (Print)9781032312590
Publication statusPublished - 2022
Publication typeA4 Article in conference proceedings
EventInternational Symposium on Cone Penetration Testing - Bologna, Italy
Duration: 8 Jun 202210 Jun 2022
Conference number: 5


ConferenceInternational Symposium on Cone Penetration Testing
Abbreviated titleCPT’22
Internet address

Publication forum classification

  • Publication forum level 1

ASJC Scopus subject areas

  • Materials Science(all)


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