E3S Web of Conf.
Volume 36, 2018BIG 2018 – 4th Nationwide Scientific Conference on Engineering-Infrastructure-Mining
|Number of page(s)||8|
|Published online||09 April 2018|
Application of the digital image correlation method in the study of cohesive coarse soil deformations
Cracow University of Technology, Faculty of Civil Engineering, Kraków, Poland
* Corresponding author: email@example.com
Non-contact video measurement methods are used to extend the capabilities of standard measurement systems, based on strain gauges or accelerometers. In most cases, they are able to provide more accurate information about the material or construction being tested than traditional sensors, while maintaining a high resolution and measurement stability. With the use of optical methods, it is possible to generate a full field of displacement on the surface of the test sample. The displacement value is the basic (primary) value determined using optical methods, and it is possible to determine the size of the derivative in the form of a sample deformation. This paper presents the application of a non-contact optical method to investigate the deformation of coarse soil material. For this type of soil, it is particularly difficult to obtain basic strength parameters. The use of a non-contact optical method, followed by a digital image correlation (DIC) study of the sample obtained during the tests, effectively completes the description of the behaviour of this type of material.
Key words: coarse soil / image correlation / unconfined compression
© The Authors, published by EDP Sciences, 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).
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