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Experimental modelling of coupled water flow and associated movements in swelling soils

Shannon, Benjamin, Gallage, Chaminda, & Kodikara, Jayantha (2010) Experimental modelling of coupled water flow and associated movements in swelling soils. In Cameron, D.A. & Kaggwa, W. (Eds.) Proceedings from the 3rd International Conference on Problematic Soils, CI-Premier, Adelaide, South Australia, pp. 295-302.

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Abstract

Modelling of water flow and associated deformation in unsaturated reactive soils (shrinking/swelling soils) is important in many applications. The current paper presents a method to capture soil swelling deformation during water infiltration using Particle Image Velocimetry (PIV). The model soil material used is a commercially available bentonite. A swelling chamber was setup to determine the water content profile and extent of soil swelling. The test was run for 61 days, and during this time period, the soil underwent on average across its width swelling of about 26% of the height of the soil column. PIV analysis was able to determine the amount of swelling that occurred within the entire face of the soil box that was used for observations. The swelling was most apparent in the top layers with strains in most cases over 100%.

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ID Code: 38969
Item Type: Conference Paper
Keywords: Clay Soil, Swelling Pressure, Water Content, Particle Image Velocimetry (PIV), Swelling Strain
ISBN: 9789810851972
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > CIVIL ENGINEERING (090500) > Civil Geotechnical Engineering (090501)
Divisions: Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Past > Schools > School of Urban Development
Copyright Owner: Copyright 2010 CI-Premier
Deposited On: 03 Dec 2010 10:08
Last Modified: 01 Mar 2012 00:24

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