Title

Deformation Non-Uniformity of an Unsaturated Soil during Triaxial Testing

Abstract

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.

Meeting Name

International Foundations Congress and Equipment Expo 2015, IFCEE 2015 (2015: Mar. 17-21, San Antonio, TX)

Department(s)

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)

978-0-7844-7908-7

International Standard Serial Number (ISSN)

0895-0563

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2015 American Society of Civil Engineers (ASCE), All rights reserved.

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