- Title
- An objective framework for determination of the air-entry value from the soil–water characteristic curve
- Creator
- Soltani, Amin; Azimi, Mahdieh; Boroomandnia, Arezoo; O'Kelly, Brendan
- Date
- 2021
- Type
- Text; Journal article
- Identifier
- http://researchonline.federation.edu.au/vital/access/HandleResolver/1959.17/180634
- Identifier
- vital:15790
- Identifier
-
https://doi.org/10.1016/j.rineng.2021.100298
- Identifier
- ISBN:2590-1230 (ISSN)
- Abstract
- The air-entry value (AEV) suction, marking the transition between saturated and unsaturated soil mechanics, is arguably the most important parameter interpreted from the soil–water characteristic curve (SWCC); its accurate determination being essential for the prediction of unsaturated soil properties. The AEV is commonly obtained by a subjective and time-consuming graphical construction. This micro-article proposes an objective framework, developed based on a practical mathematical translation technique, for the AEV determination. Explicit equations for the AEV are derived based on eleven well-established SWCC fitting functions, covering a wide range of functional complexities. In addition to its objective nature (providing unique interpretations of the AEV), the proposed framework complements numerical implementations of unsaturated soil constitutive models. © 2021 The Author(s)
- Publisher
- Elsevier B.V.
- Relation
- Results in Engineering Vol. 12, no. (2021), p.
- Rights
- All metadata describing materials held in, or linked to, the repository is freely available under a CC0 licence
- Rights
- https://creativecommons.org/licenses/by-nc-nd/4.0/
- Rights
- Copyright @ 2021 The Author(s)
- Rights
- Open Access
- Subject
- 09 Engineering; Air-entry value; Mathematical translation; Soil–water characteristic curve; Unsaturated soil
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