Summary
In order to obtain the retention curve of unsaturated soil which is defined as the relationship between water content and suction, numerous laboratory tests have been done for many soils with different clay contents. The laboratory tests concern different types of soils; the swelling and not swelling clays (natural clay with high silt content and the bentonite clay). Two complementary experimental ways are conducted. The first which leads to measure suction is based on the filter paper method. The second with the dessicator allows to impose a high suction values.
The paper discusses the theoretical approaches for the grain-size distribution and water retention curve’s relation. It discusses also their correlations according to each type of tested soil. The experimental data are used to validate the theoretical model selected in the study. The influence of the different parameters used by the model is also studied.
All the parameters required to run the model can be obtained by performing independent, common laboratory tests and are related to the physical parameters like the initial dry density and the initial void ratio.
After some numerical tests, the direct procedure to obtain the soil-water characteristic curve is improved.
This is a preview of subscription content, log in via an institution.
Buying options
Tax calculation will be finalised at checkout
Purchases are for personal use only
Learn about institutional subscriptionsPreview
Unable to display preview. Download preview PDF.
References
Arya LM, Paris JF (1981) A physicoempirical model to predict soil moisture characteristic from particle-size distribution and bulk density data, Soil Sci Soc Am J 45: 1023–1030
Arya LM, Leiji FJ, Van Genuchten MTh, Shouse PJ (1999) Scaling parameter to predict the soil water characteristic from particle size distribution data, Soil Sci Soc Am J 63: 510–519
Fredlund MD, Wilson GW, Fredlund DG (1997) Prediction of the soil water characteristic curve from grain-size distribution and volume mass properties. In: 3rd Brazilian symposium on unsaturated soil, Rio de Janeiro, Brazil, April 22–25, 1977
Fredlund MD, Wilson GW, Fredlund DG (2000) An equation to represent grain size distribution, Can Geotech J 37: 817–827
Guiras H (1996) Dèformabilitè des sols argileux non saturès : ètudes expèrimentales et application á la modèlisation. Thése de doctorat, Ecole Nationale Supèrieure de Gèologie de Nancy
Vanapalli SK, Fredlund DG, Pufahl DE (1999) The influence of soil structure and stress history on the soil–water characteristics of a compacted till, Geotechnique 49(2): 143–159
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2007 Springer-Verlag
About this paper
Cite this paper
Jamei, M., Guiras, H., Mokni, N. (2007). A Retention Curve Prediction for Unsaturated Clay Soils. In: Schanz, T. (eds) Experimental Unsaturated Soil Mechanics. Springer Proceedings in Physics, vol 112. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-69873-6_38
Download citation
DOI: https://doi.org/10.1007/3-540-69873-6_38
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-69872-2
Online ISBN: 978-3-540-69873-9
eBook Packages: EngineeringEngineering (R0)