Summary
Investigation into the mechanical and hydro-mechanical behaviour of unsaturated sand requires special laboratory equipment for testing and preparing the specimens. In this paper, the requirements for a triaxial testing device for unsaturated sand are presented. With respect to the requirements for testing unsaturated sand (axis-translation technique), measuring small overall and pore-water volume change, and the control or measurement of small values of suction, a new triaxial device has been developed. It consists of a double-walled triaxial cell, a modular loading frame including the axial power unit, and a pc for controlling and data logging. The device enables the determination of the shear strength, the SWCC, and the hydraulic conductivity of unsaturated sand.
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References
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Lauer, C., Engel, J. (2005). A triaxial device for unsaturated sand — New Developments. In: Schanz, T. (eds) Unsaturated Soils: Experimental Studies. Springer Proceedings in Physics, vol 93. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-26736-0_23
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DOI: https://doi.org/10.1007/3-540-26736-0_23
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