Deformation Non-Uniformity of an Unsaturated Soil during Triaxial Testing
In the past, full-field deformation of unsaturated soils during triaxial testing has never been reported due to lack of a measurement method. In this paper, a photogrammetry-based method was presented to investigate the deformation of an unsaturated soil during triaxial testing. Measurement targets were attached to the surface of an unsaturated cylindrical specimen. With the newly developed photogrammetry-based method, the three-dimensional coordinates of these targets are accurately determined to monitor soil deformation during triaxial testing. Soil deformation non-uniformity was extracted based on the movements of those measurement targets on specimen surface. It was found that an unsaturated soil deformation under shear load was not uniformly distributed.
L. Li and X. Zhang, "Deformation Non-Uniformity of an Unsaturated Soil during Triaxial Testing," Proceedings of the International Foundations Congress and Equipment Expo 2015 (2015, San Antonio, Texas), vol. GSP 256, pp. 2084-2091, American Society of Civil Engineers (ASCE), Mar 2015.
The definitive version is available at https://doi.org/10.1061/9780784479087.192
International Foundations Congress and Equipment Expo 2015, IFCEE 2015 (2015: Mar. 17-21, San Antonio, TX)
Civil, Architectural and Environmental Engineering
Keywords and Phrases
Deformation; Photogrammetry; Soil surveys; Soils; Cylindrical specimens; Field deformations; Measurement methods; Non-uniformities; Soil deformation; Specimen surfaces; Three dimensional coordinate; Triaxial testing; Soil testing
International Standard Book Number (ISBN)
International Standard Serial Number (ISSN)
Article - Conference proceedings
© 2015 American Society of Civil Engineers (ASCE), All rights reserved.
01 Mar 2015