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Probabilistic design of ground improvement by vertical drains for soil of spatially variable coefficient of consolidation

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Authors
Bari, Wasiul
Shahin, Mohamed
Date
2014
Type
Journal Article

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Bari, Wasiul Md. and Shahin, Mohamed A. 2014. Probabilistic design of ground improvement by vertical drains for soil of spatially variable coefficient of consolidation. Geotextile and Geomembranes. 42 (1): pp. 1-14.
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Geotextile and Geomemberanes
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This is the author’s version of a work that was accepted for publication in the Journal Geotextiles and Geomembranes. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in the Journal Geotextiles and Geomembranes, Volume 42, Issue 1, February 2014, Pages 1–14. http://doi.org/10.1016/j.geotexmem.2013.11.001

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Abstract

The design of soil consolidation via prefabricated vertical drains (PVDs) has been traditionally carried out deterministically and thus can be misleading due to the ignorance of the uncertainty associated with the inherent variability of soil properties. To treat such uncertainty in the course of design of soil improvement by PVDs, more rational probabilistic methods are necessary. In this paper, a simplified probabilistic method is proposed in which the inherent variability of the coefficient of consolidation, which is the most significant uncertain soil parameter that affects the consolidation process, is considered. An easy-to-use design procedure and charts are provided for routine use by practitioners.