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Titre du document / Document title

Interpretation of plate load tests on residual soil site

Auteur(s) / Author(s)

CONSOLI N. C. (1) ; SCHNAID F. (1) ; MILITITSKY J. (1) ;

Affiliation(s) du ou des auteurs / Author(s) Affiliation(s)

(1) Dept. of Civ. Engrg., Federal Univ. of Rio Grande do Sul, Av. Osvaldo Aranha, 99-3 andar, CEP: 90035-190, Porto Alegre, RS, BRESIL

Résumé / Abstract

This paper addresses problems of interpreting the results of loading tests in a residual homogeneous, cohesive-frictional soil. Data are presented comparing load-settlement behavior measured from tests carried out using circular steel plates ranging from 0.30 to 0.60 m diameter and square concrete footings ranging in size from 0.40 to 1.00 m. This paper stresses the need to express test results in terms of dimensionless variables in a plot of normalized applied pressure versus settlement-to-diameter ratio. In this space, the effect of the size of the loaded area on measured settlement and on bearing capacity is shown to be negligible for this residual soil site. This approach implies that a unique relationship between normalized pressure and settlement-to-diameter ratio is observed for both small and large vertical displacements. Interpretation of load tests is made within the context of elastic- and elastoplastic theories. For ultimate bearing capacity, reduced strength parameters are used to provide a realistic estimation of ultimate loads. Finally, a numerical approach is proposed for predicting the complete load-settlement behavior of shallow foundations on cemented soil deposits.

Revue / Journal Title

Journal of geotechnical and geoenvironmental engineering    ISSN  1090-0241 

Source / Source

1998, vol. 124, no9, pp. 857-867 (35 ref.)

Langue / Language

Anglais

Editeur / Publisher

American Society of Civil Engineers, Reston, VA, ETATS-UNIS  (1997) (Revue)

Mots-clés anglais / English Keywords

Soil testing

;

Load testing

;

Plate

;

Experimental result

;

In situ test

;

Laboratory test

;

Soil profile

;

Triaxial test

;

Drained soil test

;

Footing

;

Concretes

;

Settlement

;

Bearing capacity

;

Numerical simulation

;

Shear strength

;

Mots-clés français / French Keywords

Essai sol

;

Essai charge

;

Plaque

;

Résultat expérimental

;

Essai en place

;

Essai laboratoire

;

Profil pédologique

;

Essai triaxial

;

Essai drainé

;

Semelle fondation

;

Béton

;

Tassement

;

Capacité portante

;

Simulation numérique

;

Résistance cisaillement

;

Mots-clés espagnols / Spanish Keywords

Placa

;

Resultado experimental

;

Ensayo en sitio

;

Ensayo laboratorio

;

Perfil pedológico

;

Ensayo triaxial

;

Ensayo drenaje

;

Zapata fundación

;

Asentamiento

;

Simulación numérica

;

Localisation / Location

INIST-CNRS, Cote INIST : 572 C, 35400007023576.0080

Nº notice refdoc (ud4) : 2378009



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