Degree of consolidation - peaked initial excess pore water pressure distributions

Lovisa, J., Read, W.W, and Sivakugan, N. (2011) Degree of consolidation - peaked initial excess pore water pressure distributions. In: Computational Methods for Geomechanics: Frontiers and New Applications, pp. 100-105. From: IACMAG 2011 13th International Conference of the International Association for Computer Methods and Advances in Geomechanics, 9-11 May 2011, Melbourne, VIC, Australia.

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Abstract

The solution to Terzaghi's one-dimensional consolidation equation can be freely found in literature for two different cases of initial excess pore water pressure varying with depth; linear or uniform. As a result, one of these distributions is usually adopted for most consolidation analyses. However, whilst the initial excess pore water pressure can be expected to vary with depth, it may not necessarily adhere to a uniform or linear format. The primary focus of this paper will involve a consolidation analysis of a soil layer with one- or two-way drainage subjected to several possible initial excess pore water pressure distributions. It will be shown that the traditional definition for degree of consolidation is sometimes inadequate when describing the state of consolidation. For example, at certain depths, the pore water pressure can increase during consolidation, particularly when the majority of initial excess pore pressure is confined to a small region of the overall stratum.

Item ID: 17263
Item Type: Conference Item (Refereed Research Paper - E1)
ISBN: 978-0-9808244-1-4
Date Deposited: 16 Feb 2012 01:16
FoR Codes: 09 ENGINEERING > 0905 Civil Engineering > 090501 Civil Geotechnical Engineering @ 100%
SEO Codes: 87 CONSTRUCTION > 8702 Construction Design > 870201 Civil Construction Design @ 100%
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