Use of field vane tests under earth-structures/ Utilisation des essais in-situ au scissometre sous des ouvrages en terre

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ConferenceProc. 11th Int. Conf. on Soil Mechanics and Foundation Engineering: 12 August 1985, San Francisco, California, USA
Pages893898; # of pages: 6
Subjectsoft clay; soil tests; soil mechanics; shear strength; constructed embankments; soft clays; shear strengths; preconstruction values comparison; strength to effective vertical stress ratios; soil laboratory tests; essai de sol; mecanique des sols; resistance au cisaillement
AbstractThis paper reviews the results of field vane tests conducted through existing embankments constructed over a variety of soft clays. The shear strengths determined from the vane tests, when compared with the preconstruction values, increased or remained unchanged. Strength increases are associated with large loading areas or relatively thin compressible layers while little or no strength increase is associated with small loading areas or relatively thin compressible layers. In all cases the strength to effective vertical stress ratio under the existing earth-structure is less than that before construction. Laboratory tests on soils from some of the studied cases have been carried out to help understand field observations. Practical implications are discussed and guidelines are drawn for using field vane tests to estimate strength changes.
Publication date
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
NRC number25043
NPARC number20375607
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Record identifiera9359092-04e5-4049-9dfa-e1f6bb7f88ca
Record created2012-07-23
Record modified2016-05-09
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