Coupled CFD–DEM investigation of erosion accompanied by clogging mechanism under different hydraulic gradients

L Mu, P Zhang, Z Shi, M Huang - Computers and Geotechnics, 2023 - Elsevier
Soil internal erosion refers to any process that the finer grains are eroded from the matrix of
coarser grains due to seepage. A coupled computational fluid dynamics and discrete …

A comprehensive study of fines migration in internally unstable natural gas hydrate reservoirs

Y Song, D Zhang, PG Ranjith, Z Zhou, B Wu, L Kong… - Powder Technology, 2024 - Elsevier
Evaluating unconsolidated reservoirs' internal stability concerning fine migration is essential
for the commercial development of natural gas hydrate resources. In this pursuit, we use our …

Application of a staggered symmetrical spiral groove wheel on a quantitative feeding device and investigation of particle motion characteristics based on DEM

X Gao, G Xie, Y Xu, Y Yu, Q Lai - Powder Technology, 2022 - Elsevier
The uniformity of particle flow is the key to the research of quantitative feeding devices.
Ensuring particle motion characteristics will help improve the working performance of the …

DEM investigation of the effect of coarse content and size ratio on the local shear behavior at gap-graded soil-structure interface

J Xu, J Liu, X Shi, F Ji, Y Zeng - Powder Technology, 2024 - Elsevier
Gap-graded soils are widespread as naturally sedimentary soils, and their interaction with
structures is crucial for assessing the workability of the geo-structures. The effect of coarse …

Internal Piping Erosion Evaluation of Embankment Dam Considering the Spatial Variability of Soil Properties

R Wang, G Chen, Y Liu - ASCE-ASME Journal of Risk and …, 2024 - ascelibrary.org
Piping erosion is a crucial trigger for dam breaches. However, the effects of inherent spatial
variability on seepage properties have not been considered adequately, which could lead to …

Stable Physical Property Estimation Across Resolutions for Digital Rock Utilizing Texture and Intensity Features

D Zhang, G Ma, J Zhang, Z Cheng, X Chang… - Rock Mechanics and …, 2024 - Springer
The physical properties of rock can be obtained through various methods, such as the non-
destructive X-ray computed tomography (X-ray CT). The urgency for a stable property …

[HTML][HTML] Post-erosion mechanical responses of internally unstable gap-graded soil under drained torsional simple shear and triaxial compression

S Chitravel, M Otsubo, M Kuno, R Kuwano - Soils and Foundations, 2022 - Elsevier
Internal erosion is a major threat to hydraulic earth structures, such as river levees and
dams. This paper focuses on suffusion and suffosion phenomena which are caused by the …

A new flexible-wall triaxial permeameter for localized characterizations of soil suffusion

R Chen, Z Luo, L Zhang, Z Li, R Tan - Quarterly Journal of …, 2024 - lyellcollection.org
Suffusion involves the migration of fines within the soil matrix, which may cause many types
of geohazards. Localized characterization of suffusion is necessary because suffusion is …

Measuring the Effect of Pack Shape on Gravel's Pore Characteristics and Permeability Using X-ray Diffraction Computed Tomography

J Peng, Z Shen, J Zhang - Materials, 2022 - mdpi.com
Particle shape is one of the critical parameter factors that affect gravel's pore structure and
permeability. However, few studies have considered its effects on engineering applications …

Soft-rigid granular mixtures: Role of particle shape and rolling resistance in response under compressive loads

M Alam, A Das, MM Disfani - E3S Web of Conferences, 2024 - e3s-conferences.org
Mixtures of recycled tyre aggregates and common granular geo-material such as gravel and
sand have been widely used for various applications in geotechnical engineering, such as …