Driven piles design methodology and recommendations
2011
Displacement piles have a dominant share on European‘s
construction market and prevalence of bored piles. Given
occurring variable geological conditions, the occurrence of
anthropogenic layers and the lack of design standards in
construction practice in Slovakia this type of piles is slower
enforced, even if they have significant advantages over other
technologies of construction of piles. The article reports
about design practices in the world and in Slovak geotechnical
practice by the new knowledge and experience. For driven piles
design process is important role of detailed survey, where
suitable geotechnical tests of the soil profile similar to
installation process are carried out. For this case penetration
probing is recommended such as static, standard or dynamic.
When various soil profiles acting in top layers, design is
little complicated and numerical modelling by finite elements
methods can be a good alternative of axial load capacity
estimation. The present calculation of bearing capacity of
piles based on the Nordlund’s theory or other presented
theories are most depended on in situ data precision. Therefore
has been presented suitable geotechnical testing method and
correlations to obtain continues in situ data – such as static
penetration CPT or dynamic penetration DP.
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