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  • 1
    Electronic Resource
    Electronic Resource
    An approximate numerical analysis of pile-raft interaction (1994)
    New York, NY [u.a.] : Wiley-Blackwell
    International Journal for Numerical and Analytical Methods in Geomechanics 18 (1994), S. 73-92 
    Details
    ISSN: 0363-9061
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Architecture, Civil Engineering, Surveying , Geosciences
    Notes: This paper presents an approximate method of numerical analysis of piled-raft foundations in which the raft is modelled as a thin plate and the piles as interacting springs of appropriate stiffness. Allowance is made for the development of limiting pressures below the raft and of the ultimate axial load capacity of the piles.Comparisons between this analysis and existing solutions verify that, despite the approximations involved, the analysis can provide solutions of adequate accuracy for the settlement and pile load distribution within a piled raft.Comparisons are also made with the results of a series of centrifuge tests and with measurements of the performance of a full-scale piled raft. In both cases, the analysis predicts very well the settlement and proportion of load carried by the piles.
    Additional Material: 18 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/nag.1610180202
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Axially loaded vertical piles and pile groups in layered soil (1991)
    New York, NY [u.a.] : Wiley-Blackwell
    International Journal for Numerical and Analytical Methods in Geomechanics 15 (1991), S. 497-511 
    Details
    ISSN: 0363-9061
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Architecture, Civil Engineering, Surveying , Geosciences
    Notes: A numerical method is described for the analysis of axially loaded vertical piles and pile groups embedded in layered soil. The ‘hybrid’ approach is utilized whereby the single-pile response is represented by load-transfer (t-z) curves while the pile-soil-pile interaction is obtained accurately using the analytical solutions of Chan et al. for a two-layered system and in an approximate manner for a Gibson soil. For the single-pile response a simple rational procedure is suggested for the determination of the averaged rm value (radial distance at which the shear stress becomes negligible). Solutions are presented and compared with the elastic continuum solutions for such soil profiles. Finally, comparisons with actual field measurements of vertical piles and pile groups embedded in such a soil profile show favourable agreement.
    Additional Material: 9 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/nag.1610150704
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Finite element analysis of mechanisms of pile group behaviour (1986)
    New York, NY [u.a.] : Wiley-Blackwell
    International Journal for Numerical and Analytical Methods in Geomechanics 10 (1986), S. 213-221 
    Details
    ISSN: 0363-9061
    Keywords: Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Architecture, Civil Engineering, Surveying , Geosciences
    Notes: Solutions are presented for the non-linear load-settlement behaviour of square-configuration pile groups. The groups are represented by an equivalent axially symmetric model, and a non-linear finite element is used to examine the mechanisms of group behaviour and their variation with pile spacing. It is shown that, at close spacings, the block failure mechanism occurs, with significant plastic zones being developed below the group and full pile-soil slip only being developed along the outer piles. As the pile spacing increases, the failure mechanism gradually changes to the ‘single-pile’ mode, whereby full pile-soil slip occurs along all piles. Within the limitations of accuracy of the finite element solution, the values of group settlement ratio and efficiency are in reasonable agreement with values derived from existing theories.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/nag.1610100208
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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