Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/125028
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Type: Journal article
Title: Modelling electro-osmosis-surcharge preloading combined consolidation of unsaturated soils
Author: Zhou, Y.
Deng, A.
Fu, J.
Citation: Computers and Geotechnics, 2019; 114:103145-1-103145-13
Publisher: Elsevier
Issue Date: 2019
ISSN: 0266-352X
1873-7633
Statement of
Responsibility: 
Yadong Zhou, An Dengb, Jiyu Fu
Abstract: Electro-osmosis often dewaters soils into unsaturated conditions. The unsaturated conditions invalidate electroosmosis models that are developed by assuming presence of full saturation throughout. The unsaturated condition causes non-negligible influences on soil geomechanical properties and its consolidation behaviour, and should be accounted for. This study presents a numerical model, UEC2, of simulating electro-osmosis–surcharge preloading combined consolidation considering varied degree of saturation of soil. Model UEC2 is able to capture nonlinear changes of soil properties, time-dependent loading and instantaneous pore air compression. This model was validated against laboratory test results, and was applied to varied test examples in order to assess evolvement of unsaturated conditions and its effect on consolidation.
Keywords: Large-strain consolidation; Electro-osmosis; Surcharge preloading; Unsaturated; Seepage; Nonlinear
Description: Available online 12 July 2019
Rights: © 2019 Elsevier Ltd. All rights reserved.
RMID: 0030120923
DOI: 10.1016/j.compgeo.2019.103145
Appears in Collections:Civil and Environmental Engineering publications

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