Study of in-situ test methods in deltaic silt/ Etude des mé thodes d'essai in-situ dans un limon deltaique

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ConferenceProc. 11th Int. Conf. on Soil Mechanics and Foundation Engineering/ C.R. 11e congrèes int. de mécanique des sols et des travaux de fondations: v.2: Technical Papers/ Exposé s techniques: 12 August 1985, San Francisco, California, USA
Pages879886; # of pages: 8
Subjectclay soils; estuaries; silt; soil tests; clayey silt; clay soils; soil strengths; pressuremeter measurements; vane shear strengths; dilatometer measurements; horizontal stresses; rigidity index; piezocone test; cone penetration rate effect; estuaire; limon (sol); essai de sol
AbstractA comprehensive in-situ testing program using a field vane, electric cone penetrometer with friction sleeve and piezometer tip, dilatometer and a self-boring pressuremeter, was carried out in deltaic clayey silt of low plasticity, below 15 m of sand. Soil strengths measured with the pressuremeter were 62% more than the vane shear strengths which in turn were greater than those measured with the dilatometer. In-situ horizontal stresses measured with the pressurementer provided an average K0 = 0.56. It also provided a measure of the rigidity index used to study the piezocone results. The present study revealed that empirical correlations developed for clay soils were not directly applicable to the clayey silt formation. Rate effect during cone penetration differed also from that generally observed in clays.
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AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
NRC number25042
NPARC number20375082
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Record identifier70116b44-db0e-41dd-a323-fd6d8495f37e
Record created2012-07-23
Record modified2016-05-09
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