An objective framework for determination of the air-entry value from the soil?water characteristic curve
Citation:
Soltani A., Azimi M., Boroomandnia A. and O?Kelly B.C., An objective framework for determination of the air-entry value from the soil?water characteristic curve, Results in Engineering, 12, 2021, 5 (article 100298)Download Item:
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.
Author's Homepage:
http://people.tcd.ie/bokellyDescription:
PUBLISHEDIncludes Appendix A ? Supplementary data available at https://ars.els-cdn.com/content/image/1-s2.0-S2590123021000992-mmc1.pdf
Author: O'Kelly, Brendan
Type of material:
Journal ArticleSeries/Report no:
Results in Engineering12
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Full text availableKeywords:
Unsaturated soil, Soil–water characteristic curve, Air-entry value, Mathematical translationSubject (TCD):
Smart & Sustainable Planet , Air entry value , Constitutive modelling in geotechnical engineering , Environmental Geotechnics , GEOTECHNICAL ENGINEERING , Geotechnics , SOIL , SOIL HYDRAULIC-PROPERTIES , SOIL PROPERTIES , SOIL WATER , SOIL-MOISTURE , Soil Mechanics , Soil Mechanics & Foundations , Soil-Water Characteristic Curve , UNSATURATED SOIL , geotechnicalDOI:
https://doi.org/10.1016/j.rineng.2021.100298Metadata
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