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Article
Radial consolidation modelling incorporating the effect of a smear zone for a multilayer soil with downdrag caused by mandrel action
Faculty of Engineering - Papers (Archive)
  • Cholachat Rujikiatkamjorn, University of Wollongong
  • Buddhima Indraratna, University of Wollongong
RIS ID
33732
Publication Date
1-1-2010
Publication Details

Rujikiatkamjorn, C and Indraratna, B, Radial consolidation modelling incorporating the effect of a smear zone for a multilayer soil with downdrag caused by mandrel action, Canadian Geotechnical Journal, 47(9), 2010, 1024-1035.

Abstract

A system of prefabricated vertical drains with surcharge preloading is an effective method for promoting radial drainage and accelerated soil consolidation. A piecewise technique is employed to analyse the radial consolidation in a multilayer soil system to include (i) the effect of soil downdrag and (ii) a smear zone having linearly varying soil permeability. The effect of soil dragged down from the upper soil layer into the lower layer has been analysed in terms of the time required for consolidation. It can be seen that the consolidation of the multilayer soil depends on smear zone characteristics, the permeability ratio between upper and lower soil layers, penetration depth, and drain spacing. Design procedures are described with the help of an example.

Disciplines
Citation Information
Cholachat Rujikiatkamjorn and Buddhima Indraratna. "Radial consolidation modelling incorporating the effect of a smear zone for a multilayer soil with downdrag caused by mandrel action" (2010) p. 1024 - 1035
Available at: http://works.bepress.com/crujikiatkamjorn/57/