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Geotechnical and Geological Engineering
Published in: Geotechnical and Geological Engineering 1/2013

01-02-2013 | Original paper

Operational Coefficient of Consolidation Around a Pile Group Driven in Clay/Silt

Authors: Bryan A. McCabe, Brian G. Sexton, Barry M. Lehane

Published in: Geotechnical and Geological Engineering | Issue 1/2013

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Abstract

Although finite element packages facilitating coupled consolidation analyses are increasingly in use, many practitioners still favour linear uncoupled analysis out of familiarity with the use of coefficients of consolidation. However, coefficients of consolidation measured by any single means tend to exhibit significant variation, with mean results from different laboratory and field tests also varying widely, leaving uncertainty over the correct values to apply to field problems. In this paper, a finite difference approach is used to back-calculate operational coefficients of consolidation from pore pressure measurements pertinent to a pile group driven in clay–silt. The research shows that this method is capable of successfully capturing the process of pore pressure dissipation, and that the operational coefficient of consolidation around the pile group is higher than that derived from piezocone dissipation tests in the same material.
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Metadata
Title
Operational Coefficient of Consolidation Around a Pile Group Driven in Clay/Silt
Authors
Bryan A. McCabe
Brian G. Sexton
Barry M. Lehane
Publication date
01-02-2013
Publisher
Springer Netherlands
Published in
Geotechnical and Geological Engineering / Issue 1/2013
Print ISSN: 0960-3182
Electronic ISSN: 1573-1529
DOI
https://doi.org/10.1007/s10706-012-9579-1

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