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The Bearing Capacity of Circular Footings in Sand

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Authors:
  • Krabbenhøft, Sven ;
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    Orcid logo0000-0002-4816-312X
    Aalborg University Esbjerg, Department of Civil Engineering, The Faculty of Engineering and Science, Aalborg University
  • Clausen, Johan ;
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    Orcid logo0000-0002-9257-0013
    Department of Civil Engineering, The Faculty of Engineering and Science, Aalborg University
  • Damkilde, Lars
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    Orcid logo0000-0001-8538-352X
    Department of Civil Engineering, The Faculty of Engineering and Science, Aalborg University
Subtitle:
Comparison between Model Tests and Numerical Simulations Based on a Nonlinear Mohr Failure Envelope
DOI:
10.1155/2012/947276
Abstract:
This paper presents the results of a series of triaxial tests with dry sand at confining pressures varying from 1.5 kPa to 100 kPa at relative densities of 0.20, 0.59 and 0.84. The results, which are in reasonable accordance with an equation given by Bolton, show that the friction angle is strongly dependent on the stress level and on the basis of the test results, a non linear Mohr failure criterion has been proposed. This yield criterion has been implemented in a finite element program and an analysis of the bearing capacity of a circular shaped model foundation, diameter 100mm, has been conducted. Comparisons have been made with results from 1g model scale tests with a foundation of similar size and a good agreement between numerical results and test results has been found.
Type:
Journal article
Language:
English
Published in:
Advances in Civil Engineering, 2012, Vol 2012
Keywords:
Triaxial Tests; Low Confining Pressure; Shallow Foundations; Non Linear; Dilation; Friction Angle; Finite Element Simulation; 1g Model Tests
Main Research Area:
Science/technology
Publication Status:
Published
Review type:
Peer Review
Submission year:
2012
Scientific Level:
Scientific
ID:
247964044

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