Quick clay behaviour in sensitive quaternary marine clays – a UK perspective

Dave Giles

    Research output: Chapter in Book/Report/Conference proceedingChapter (peer-reviewed)peer-review


    The term quick clay has been used to denote the behaviour of highly sensitive Quaternary marine clays that, due to post depositional processes, have the tendency to change from a relatively stiff condition to a liquid mass when disturbed. On failure these marine clays can rapidly mobilise into high velocity flow slides and spreads often completely liquefying in the process. For a clay to be defined as potentially behaving as a quick clay in terms of its geotechnical parameters it must have a sensitivity (the ratio of undisturbed to remoulded shear strength) of greater than 30 together with a remoulded shear strength of less than 0.5 kPa. The presence of quick clays in the UK is unclear, but the Quaternary history of the British islands suggests that the precursor conditions for their formation could be present and should be considered when undertaking construction in the coastal zone.
    Original languageEnglish
    Title of host publicationGeological Hazards in the UK: Their Occurrence, Monitoring and Mitigation
    Subtitle of host publicationEngineering Group Working Party Report
    EditorsD. P. Giles, J. S. Griffiths
    PublisherGeological Society of London
    Number of pages17
    Publication statusPublished - 9 Jun 2020

    Publication series

    NameEngineering Geology Special Publications
    PublisherThe Geological Society

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