An instrumented large soil column to investigate climatic ground interaction
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Description
The field monitoring of the climatic-induced behaviour of the expansive soil has always been difficult, expensive and time consuming. The uncontrollability of the field boundary conditions and the difficulty in accurately measuring them have worsened the problem. As an alternative, the instrumented model set-ups are ideal for long-term monitoring of expansive soils since the laboratory compacted expansive soils become environmentally stabilised after few wet–dry cycles. There had been a very limited laboratory-based column set-ups for the observation of expansive soils under unsaturated conditions with an appropriate set of sensors embedded at known depths. The major difficulties associated with model tests are considerable boundary effect and sensor-to-soil area ratio due to the insufficient physical model dimensions. In this study, the research need for a laboratory model set-up with minimised boundary effects has been addressed by a large instrumented soil column, which could more closely represent environmentally stabilised soil. The current results depict the expected pattern for the variations of soil suction, volumetric water content and soil displacement under wetting and drying phenomenon, which accentuates the applicability of instrumented soil column for the investigation of climatic-induced expansive soil behaviour.
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ID Code: | 201668 | ||||
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Item Type: | Contribution to Journal (Journal Article) | ||||
Refereed: | Yes | ||||
ORCID iD: |
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Additional Information: | Publisher Copyright: © 2020 ICE Publishing: All rights reserved. Copyright: Copyright 2021 Elsevier B.V., All rights reserved. | ||||
Measurements or Duration: | 17 pages | ||||
Keywords: | Expansive soils; Model test; Monitoring; Suction; Ground movement; Wet-dry cycle; 67 Geotechnical engineering; Partial saturation | ||||
DOI: | 10.1680/jphmg.19.00007 | ||||
ISSN: | 1346-213X | ||||
Pure ID: | 61315541 | ||||
Divisions: | Current > Research Centres > Centre for the Environment Current > QUT Faculties and Divisions > Faculty of Science Current > QUT Faculties and Divisions > Faculty of Engineering Current > Schools > School of Civil & Environmental Engineering |
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Copyright Owner: | ICE Publishing | ||||
Copyright Statement: | This work is covered by copyright. Unless the document is being made available under a Creative Commons Licence, you must assume that re-use is limited to personal use and that permission from the copyright owner must be obtained for all other uses. If the document is available under a Creative Commons License (or other specified license) then refer to the Licence for details of permitted re-use. It is a condition of access that users recognise and abide by the legal requirements associated with these rights. If you believe that this work infringes copyright please provide details by email to qut.copyright@qut.edu.au | ||||
Deposited On: | 06 Jul 2020 05:09 | ||||
Last Modified: | 26 May 2024 21:33 |
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