Influence of embedment, self-weight and anisotropy on bearing capacity reliability using the random finite element method

The paper expands on previous work by the authors on bearing capacity of random c′-ϕ′ soils using the random finite element method. The refinements in the present work include the influence of embedment, soil self-weight and anisotropy which were not considered previously. The study focuses on a gre...

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Bibliographic Details
Published in:Computers and geotechnics 2015-06, Vol.67, p.229-238
Main Authors: Pieczyńska-Kozłowska, J.M., Puła, W., Griffiths, D.V., Fenton, G.A.
Format: Article
Language:English
Subjects:
Anisotropic random field
Anisotropy
Bearing capacity
Calibration
Estimates
Finite element method
Mathematical analysis
Random finite element method
Safety factors
Soils
Stochasticity
Strip foundation
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Summary:The paper expands on previous work by the authors on bearing capacity of random c′-ϕ′ soils using the random finite element method. The refinements in the present work include the influence of embedment, soil self-weight and anisotropy which were not considered previously. The study focuses on a grey-blue clay from Taranto in Italy, for which stochastic strength parameters were well documented. Results show that the influences of embedment, self-weight and anisotropy can be significant and lead to more realistic estimates of bearing capacity reliability. Finally a probability distribution of the bearing capacity was estimated and used to calibrate safety factors for reliability purposes.
ISSN:0266-352X
1873-7633
DOI:10.1016/j.compgeo.2015.02.013