Authors: Krisdani, Henry; Rahardjo, Harianto; Leong, Eng-Choon

Source: Canadian Geotechnical Journal, Volume 46, Number 7, July 2009 , pp. 869-874(6)

Publisher: NRC Research Press

Abstract:

This paper presents the determination of permeability functions by direct and indirect methods. The direct method used in this study was the instantaneous profile method, while the indirect method used was the statistical method. The instantaneous profile method was adopted to calculate permeability functions of residual soils used in laboratory slope models. Pore-water pressure measured using tensiometers along the slope models and independently measured soil-water characteristic curves (SWCCs) were used for the instantaneous profile calculation. To obtain a continuous permeability function, the instantaneous profile results were then fitted using the statistical method.

Cet article présente des méthodes directes et indirectes pour déterminer les fonctions de perméabilité. La méthode directe utilisée dans cette étude est la méthode des profils instantanés, tandis que la méthode indirecte utilisée est la méthode statistique. La méthode des profils instantanés a servi à calculer les fonctions de perméabilité de sols résiduels provenant de modèles de pentes en laboratoire. La pression interstitielle a été mesurée à l'aide de tensiomètres le long des modèles de pentes; elle a ensuite été utilisée avec des courbes caractéristiques sol-eau mesurées indépendamment pour calculer le profil instantané. Afin d'obtenir une fonction de perméabilité continue, les résultats des profils instantanés ont été ajustés avec la méthode statistique.

Document Type: Research article

Publication date: 2009-07-01

More about this publication?

• Published since 1963, this monthly journal features articles, notes, and discussions related to new developments in geotechnical and geoenvironmental engineering, and applied sciences. The topics of papers written by researchers, theoreticians, and engineers/scientists active in industry include soil and rock mechanics, material properties and fundamental behaviour, site characterization, foundations, excavations, tunnels, dams and embankments, slopes, landslides, geological and rock engineering, ground improvement, hydrogeology and contaminant hydrogeology, geochemistry, waste management, geosynthetics, offshore engineering, ice, frozen ground and northern engineering, risk and reliability applications, and physical and numerical modelling. Papers on actual case records from practice are encouraged and frequently featured.
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