Characterisation of Norwegian marine clays with combined shear wave velocity and CPTU data

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Title: Characterisation of Norwegian marine clays with combined shear wave velocity and CPTU data
Authors: Long, Michael (Michael M.)
Donohue, Shane
Permanent link: http://hdl.handle.net/10197/3076
Date: Jul-2010
Abstract: A database of research quality CPTU and shear wave velocity information for Norwegian marine clays has been assembled so as to study the small strain stiffness relationships for these materials and to examine the potential use of CPTU and Vs data in combination for the purposes of characterising these soils. Data for sites where high quality block sampling was carried out have mostly been used. Improvements have been suggested to existing correlations between Gmax or Vs and index properties for these soils. Recent research has shown that CPTU qt and especially u2 and Vs can be measured reliably and repeatably and are not operator or equipment dependant. Therefore a new soil classification chart involving Qt and normalised shear wave velocity (Vs1) or Vs1 and Δu/σv0' is presented. Using this chart it is possible to clearly distinguish between clays of different OCR.
Funding Details: Not applicable
Type of material: Journal Article
Publisher: NRC Research Press
Keywords: Soft claysShear wave velocityCone penetration testsOverconsolidation ratio
Subject LCSH: Clay--Testing
Shear strength of soils--Testing
Shear waves
DOI: 10.1139/T09-133
Language: en
Status of Item: Peer reviewed
Appears in Collections:Urban Institute Ireland Research Collection
Critical Infrastructure Group Research Collection
Civil Engineering Research Collection

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