E3S Web Conf.
Volume 92, 20197th International Symposium on Deformation Characteristics of Geomaterials (IS-Glasgow 2019)
|Number of page(s)||5|
|Section||Treated Geomaterials: Mechanical Stabilisation|
|Published online||25 June 2019|
Root-reinforced sand: kinematic response of the soil
Université Grenoble Alpes, CNRS, Grenoble INP, 3SR, F-38000 Grenoble, France
2 Georgia Institute of Technology, School of Civil and Environmental Engineering, USA
3 The James Hutton Institute, Invergowrie, Dundee DD2 5D Scotland, UK
4 University of Dundee, School of Science and Engineering DD1 4HN Scotland, UK
* Corresponding author: email@example.com
The influence of the soil on the growth of a root system has been largely investigated. By contrast, the aim of this work is to go deep into the details of how the soil may be influenced by the root system. In particular, the root growth process and its potential to improve the soil strength is explored. Even though roots can be seen as fiber-like reinforcements, their growth changes the soil microstructure. Consequently, one of the objectives is to understand how the water content and the soil displacement fields evolve when an inclusion expands radially and axially. In particular, an investigation was carried on to characterise the deformation of the solid phase of the soil, due to the root growth. A series of in-vivo x-ray tomographies was acquired with Maize seeds growing roots into a coarse Hostun HN1.5-2 sand. Digital Image Correlation is used to calculate the soil 3D displacement fields around the growing plant roots.
© The Authors, published by EDP Sciences, 2019
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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