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  5. The impact of soil autocorrelation on pile load displacement behaviour
 
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The impact of soil autocorrelation on pile load displacement behaviour

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Download The_impact_of_soil_autocorrelation_on_pile_load_displacement_behaviour.pdf413.85 KB
Author(s)
Doherty, Paul 
Gavin, Kenneth 
Weichao, Li 
Uri
http://hdl.handle.net/10197/4553
Date Issued
02 October 2011
Date Available
30T16:01:57Z August 2013
Abstract
Foundation design is often controlled by the serviceability limit state and the mobilised settlement under operational conditions is often the governing design condition. Accurate predictions of pile displacements are often hampered by the inherent soil variability. This paper describes an analysis which incorporates the uncertainty in soil properties directly into the pile settlement calculations through a monte-carlo simulation. A t-z analysis is performed which assumes the axial load in a pile is resisted by non-linear uncoupled spring elements, which are dependent on the properties of the surrounding soil. The input soil parameters are modelled by log normally distributed variables. The ultimate friction mobilised by the soil springs is calculated using the Cone Penetration Test based Imperial College pile design approach. CPT data from an Irish dense sand test site is used in the analysis. The springs are assumed to be auto-correlated with depth in a similar manner to the CPT profile, with the degree of correlation defined by the scale of fluctuation. In the final section, the results are discussed in light of previous research which assumed uncorrelated soil properties.
Type of Material
Conference Publication
Publisher
Pan-Am CGS 2011 Organizing Committee
Copyright (Published Version)
2011, the authors
Keywords
  • Soil properties

  • Pile load

Web versions
http://geoserver.ing.puc.cl/info/conferences/PanAm2011/panam2011/pdfs/GEO11Paper699.pdf
Language
English
Status of Item
Peer reviewed
Description
2011 Pan-Am CGS Geotechnical Conference, Toronto, Canada, October, 2011
This item is made available under a Creative Commons License
https://creativecommons.org/licenses/by-nc-nd/3.0/ie/
Owning collection
Civil Engineering Research Collection
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1644
Acquisition Date
Jan 26, 2023
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Acquisition Date
Jan 26, 2023
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