Recent Advances in Image-Based Geotechnics II
A special issue of Journal of Imaging (ISSN 2313-433X).
Deadline for manuscript submissions: closed (31 March 2024) | Viewed by 2086
Special Issue Editor
Interests: micromechanics; X-ray tomography; image analysis; geotechnics
Special Issues, Collections and Topics in MDPI journals
Special Issue Information
Dear Colleagues,
The use of image-based techniques has transformed the way we understand geomaterials and their behaviour. Imaging tools opened up the possibility to not only access the internal structure of soils and rocks, but also investigate their behaviour at different scales, thus advancing from the more conventional boundary measurements obtained in laboratory tests. Early examples of image-based studies in geotechnics include the quantification of the particle shape of rock fragments by Wadell in 1932, the investigation of fabric evolution in sands using thin sections carried out by Oda in 1972, and the use of radiographs to track strain localisation on retaining walls by Roscoe in 1970. The development of imaging techniques and computer power has enabled unprecedented insights into how the initial microstructure and its deformation determine the mechanical and hydraulic behaviour of geomaterials. In particular, a real breakthrough was achieved in the last 15 years with the use of X-ray computed tomography coupled with 3D image analysis. This has been pivotal in advancing both discrete modelling and fabric-informed continuum modelling. A number of challenges still persist, specifically related to resolving images at the particle scale of complex microstructures and fine soils. However, not all problems require this level of detail, and defining the right scale of interest and the representative sample size is a critical aspect that is gaining more relevance as the application areas grow.
This Special Issue is dedicated to recent advances in image-based geotechnics. This is a broad topic that includes a variety of imaging tools, geomaterials, and applications. The aim of this Special Issue is to provide a forum to publish original research papers covering the use of imaging for the investigation, characterisation and modelling of geomaterials. We invite contributions that develop our fundamental understanding or address engineering problems.
Dr. Joana Fonseca
Guest Editor
Manuscript Submission Information
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Keywords
- particle-scale behaviour
- fabric/structure of soil
- micromechanics
- multiscale/multiphysical behaviour
- contact mechanics
- image-based modelling
- particle kinematics
- micro to macro
- image processing/analysis
- computed tomography
- microscopy
- digital image correlation
- particle image velocimetry
- deep learning/neural networks
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