Soil Water Retention Surface Determination Using a New Triaxial Testing System
The soil water retention curve has been widely used to characterize the relationship between the water content and the soil water potential. The conventional pressure plate method for the soil water retention curve determination is very time consuming. Also, soil volume change during testing is not available. Recently, a new triaxial testing system has been developed for unsaturated soil characterization. In this study, this new system was utilized to determine the soil water retention surface through a series of constant water content consolidation tests on unsaturated soils with different moisture contents. Results from these tests indicate that the new triaxial system is a time-efficent option for soil water retention surface determination.
KeywordsSoil water retention surface Triaxial test High-suction tensiometer
- ASTM: C 1699: Standard Test Method for Moisture Retention Curves of Porous Building Materials Using Pressure Plates. Annual Books of ASTM Standards, Philadelphia, PA (2009)Google Scholar
- Li, L., Zhang, X.: Development of a new high-suction tensiometer. In: Soil Behavior and Geomechanics, pp. 416–425 (2014)Google Scholar
- Padilla, J.M., Perera, Y.Y., Houston, W.N., Fredlund, D.G.: A new soil–water characteristic curve device. In: Tarantino et al. (eds.) Proceedings of the Advanced Experimental Unsaturated Soil Mechanics, EXPERUS 2005. Balkema Publishers, pp. 15–22 (2005)Google Scholar
- Péron, H., Hueckel, T., Laloui, L.: An improved volume measurement for determining soil water retention curves. Geotech. Test. J. 30(1), 1 (2007)Google Scholar
- Bishop, A.W., Donald, I.B.: The experimental study of partly saturated soil in the triaxial apparatus. In: Proceedings of the 5th International Conference on Soil Mechanics and Foundation Engineering, Paris 1, pp. 13–21 (1961)Google Scholar