Comparison between Coupled and Uncoupled Consolidation Analysis of a Rigid Sphere in a Porous Elastic Infinite Space
Publication: Journal of Engineering Mechanics
Volume 136, Issue 8
Abstract
Linear consolidation analyses are usually treated either by means of Terzaghi-Rendulic uncoupled theory or Biot’s consolidation theory. In this note, the problem of consolidation displacements around an axially loaded sphere was considered. It is demonstrated that both the uncoupled analysis and the coupled analysis give the same governing equation for pore fluid pressure dissipation with time. A simplified procedure for deriving transient strain components is illustrated. A general solution for time-dependent displacements is obtained using uncoupled consolidation analysis. Close agreement is evident between the new approximate uncoupled analysis solution and the existing coupled analysis solution with a maximum error of less than 0.5%.
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References
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Published In
Journal of Engineering Mechanics
Volume 136 • Issue 8 • August 2010
Pages: 1059 - 1064
Copyright
© 2010 ASCE.
History
Received: May 26, 2009
Accepted: Feb 3, 2010
Published online: Feb 15, 2010
Published in print: Aug 2010
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