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Erschienen in:
2017 | OriginalPaper | Buchkapitel
11. Experimental Modeling of Unsaturated Intermediate Geomaterials for Sustainable Design of Geotechnical Infrastructure
verfasst von : Laureano R. Hoyos, Anand J. Puppala
Erschienen in: Sustainability Issues in Civil Engineering
Verlag: Springer Singapore
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Abstract
Over the last few decades, intensive and sustained experimental efforts have been undertaken worldwide that have defined the threshold of our understanding of unsaturated soil behavior. The adoption of matric suction and the excess of total stress over air pressure, that is, net normal stress, as the relevant stress state variables, have facilitated the investigation of key features of unsaturated soil behavior via either axis-translation or vapor transfer technique. The present paper documents some of the most recent advances in experimental modeling of intermediate geomaterials over a whole range of suction-controlled paths and modes of deformation. Its main sections describe the test protocols and corresponding results from suction-controlled resonant column, biaxial, triaxial, and ring shear testing programs recently accomplished at the Advanced Geomechanics Laboratory (AGL) of the University of Texas at Arlington, via either axis-translation or vapor transfer technique.