Performance and analysis of cone pressuremeter tests in sands / N. J. Withers in Géotechnique, Vol. 39 N°3 (Septembre 1989)  

Public ISBD [article]  inGéotechnique > Vol. 39 N°3 (Septembre 1989) . - pp. 433 –454 Titre : Performance and analysis of cone pressuremeter tests in sands Type de document : texte imprimé Auteurs : N. J. Withers, Auteur ; J. Howie, Auteur ; J. M. O. Hughes, Auteur Année de publication : 2007 Article en page(s) : pp. 433 –454 Note générale : Génie Civil Langues : Anglais (eng) Mots-clés : Friction Analysis Shear modulus site investigation Sands Field tests Résumé : This Paper presents the results of tests performed in sand with a prototype cone pressuremeter. Values of shear modulus and friction angle of the sand are derived from the data using cavity expansion/contraction theory. These values are compared with those obtained from seismic cone penetration tests and self boring pressuremeter tests. The Paper aimsto stimulate the development of methods to evaluate and apply data obtained from testsin sands with this operationally convenient in situ test. The values of shear modulus obtained with the cone pressuremeter are compatible with those obtained from the other tests. The availability of a cone resistance profile provided by the cone pressuremeter, at the same location as the pressuremeter derived shear moduli, facilitates the production of a continuous depth profile of shear modulus based on a reliable site specific correla- tion. Available cavity expansion theory produces unrealistic values of peak friction and dilation angle from cone pressuremeter data. Available cavity contraction theory produces unrealistic values of friction and dilation angle from both cone pressuremeter and self boringpressuremeter data. Creep deformations contribute to the difficulties associated with theapplications of cavity expansion and contraction theories. However, with appropriate tes procedures the creep deformation can be identified. A standard test procedure is proposedto facilitate comparisons of data obtained from further tests in different sands. Such comparisons are needed to advance understanding of cone pressuremeter test data. ISSN : 0016-8505 En ligne : http://www.icevirtuallibrary.com/content/article/10.1680/geot.1989.39.3.433 [article] Performance and analysis of cone pressuremeter tests in sands [texte imprimé] / N. J. Withers, Auteur ; J. Howie, Auteur ; J. M. O. Hughes, Auteur . - 2007 . - pp. 433 –454. Génie Civil Langues : Anglais (eng) in Géotechnique > Vol. 39 N°3 (Septembre 1989) . - pp. 433 –454 Mots-clés : Friction Analysis Shear modulus site investigation Sands Field tests Résumé : This Paper presents the results of tests performed in sand with a prototype cone pressuremeter. Values of shear modulus and friction angle of the sand are derived from the data using cavity expansion/contraction theory. These values are compared with those obtained from seismic cone penetration tests and self boring pressuremeter tests. The Paper aimsto stimulate the development of methods to evaluate and apply data obtained from testsin sands with this operationally convenient in situ test. The values of shear modulus obtained with the cone pressuremeter are compatible with those obtained from the other tests. The availability of a cone resistance profile provided by the cone pressuremeter, at the same location as the pressuremeter derived shear moduli, facilitates the production of a continuous depth profile of shear modulus based on a reliable site specific correla- tion. Available cavity expansion theory produces unrealistic values of peak friction and dilation angle from cone pressuremeter data. Available cavity contraction theory produces unrealistic values of friction and dilation angle from both cone pressuremeter and self boringpressuremeter data. Creep deformations contribute to the difficulties associated with theapplications of cavity expansion and contraction theories. However, with appropriate tes procedures the creep deformation can be identified. A standard test procedure is proposedto facilitate comparisons of data obtained from further tests in different sands. Such comparisons are needed to advance understanding of cone pressuremeter test data. ISSN : 0016-8505 En ligne : http://www.icevirtuallibrary.com/content/article/10.1680/geot.1989.39.3.433

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