Applications of Computed Tomography (CT) in environmental soil and plant sciences

H Zhang, H He, Y Gao, A Mady, V Filipović… - Soil and Tillage …, 2023 - Elsevier
Computed tomography (CT) in combination with advanced image processing can be used to
non-invasively and non-destructively visualize complex interiors of living and non-living …

Review on image-based non-destructive observation methods for soil meso-liquefaction process

H Wang, W Wu, Y Zhou, Y Sun, Z Zhao, L Hu… - Bulletin of Engineering …, 2024 - Springer
Investigation of the mechanisms of soil liquefaction using imaging techniques from a
mesoscopic perspective is essential for thorough characterization and quantification …

A micro-investigation of unsaturated sand in mini-triaxial compression based on micro-CT image analysis

JP Wang, JY Luan, XG Gao, TH Liu, E Ando… - Acta Geotechnica, 2022 - Springer
The mechanical behaviours of unsaturated soils are highly related to the water content and
pore water and air distributions. Under the context of climate change, geo-disasters related …

Evolution of the force chain structure of partially saturated granular material under triaxial compression conditions

XQ Jiang, EL Liu - Computers and Geotechnics, 2023 - Elsevier
Saturation conditions play a significant role in the mechanical behavior of granular material
and the evolution of an interparticle contact system during the loading process. Using data …

A microscopic interpretation of hysteresis in the water retention curve of sand

Y Higo, R Kido - Géotechnique, 2023 - icevirtuallibrary.com
The hysteresis observed in a water retention curve was experimentally studied through the
use of X-ray micro-computed tomography (μCT). The CT images were acquired during the …

Quantitative 3D imaging of partially saturated granular materials under uniaxial compression

M Milatz, N Hüsener, E Andò, G Viggiani, J Grabe - Acta Geotechnica, 2021 - Springer
Gauging the mechanical effect of partial saturation in granular materials is experimentally
challenging due to the very low suctions resulting from large pores. To this end, a uniaxial …

[HTML][HTML] Capturing the transition from diffuse to localised failure in constitutive modelling of partially saturated soils

DG Phan, GD Nguyen, HH Bui, T Bennett - International Journal of …, 2023 - Elsevier
Localised failures in the form of shear band induce localised deformation and saturation
within partially saturated soils. Inelastic responses mainly take place inside the shear band …

[HTML][HTML] Exploring the tensorial nature of capillary stress and the constitutive role of contact stress in wet granular materials

M Farahnak, R Wan, M Pouragha - Computers and Geotechnics, 2024 - Elsevier
The current study adopts a micromechanical approach to explore the nature of stress
transmission in wet granular materials. First, we derive the discrete form of the capillary …

The effect of hydro-mechanical coupling on the onset and orientation of localisation bands in partially saturated soils

DG Phan, GD Nguyen, HH Bui, T Bennett - International Journal of …, 2023 - Elsevier
Constant suction triaxial tests on partially saturated soils demonstrate the dependence of the
onset and orientation of localisation bands upon different mechanical loading and saturation …

Characteristics of conditioned sand for EPB shield and its influence on cutterhead torque

Z Yang, X Yang, Y Ding, Y Jiang, W Qi, Z Sun, X Shao - Acta Geotechnica, 2022 - Springer
The cutterhead of an earth pressure balance (EPB) shield usually relies on a large torque
when tunneling through a water-rich and high-permeability sand layer. Sandy soils may lead …