Pore structure effects on the water retention behaviour of a compacted silty sand soil subjected to drying-wetting cycles

CWW Ng, D Peprah-Manu - Engineering Geology, 2023 - Elsevier
Most of the previous studies on the effects of pore structure on soil water retention behaviour
are limited to a single drying and wetting cycle. This study evaluated the effects of pore …

Hydro-mechanical behavior of unsaturated intact paleosol and intact loess

Q Mu, L Meng, Z Lu, L Zhang - Engineering Geology, 2023 - Elsevier
Many geo-hazards occurred in regions incorporating loess-paleosol sequences.
Understanding the hydro-mechanical behavior of unsaturated intact paleosol and intact …

The influence of isotropic loading and unloading on anisotropic evolution of saturated hydraulic conductivity of bentonite-sand mixtures in a cube triaxial permeameter

H Sadeghi, M Gholami, P AliPanahi, D Song - Engineering Geology, 2024 - Elsevier
Anisotropic permeability of bentonite mixtures governs water flow regime in buffer materials
such as landfill cover systems, cutoff walls, and high-level waste repositories. Because of its …

Assessing unsaturated permeability of loess under multiple rainfalls

H Wang, J Zou, W Wu, W Ni - Engineering Geology, 2023 - Elsevier
Multiple rainfalls may give rise to changes in the microstructure of loess which in turn alter its
unsaturated permeability. This study evaluates the unsaturated permeability of compacted …

Geotechnical characterization and collapsibility of a natural dispersive loess

H Sadeghi, M Kiani, M Sadeghi, F Jafarzadeh - Engineering geology, 2019 - Elsevier
During preliminary investigation phase of the national Chabahar-Zahedan railway line,
serious geotechnical problems including non-uniform settlements, tensile cracks, and local …

Predicting shear strength of unsaturated soils over wide suction range

Y Gao, D Sun, A Zhou, J Li - International Journal of Geomechanics, 2020 - ascelibrary.org
Unsaturated soils over a wide suction range are widespread in nature. The shear strength of
unsaturated soils is a fundamental property in various geotechnical designs. In this paper, a …

Study on the deformation and failure modes of filling slope in loess filling engineering: a case study at a loess mountain airport

J Wang, Y Xu, Y Ma, S Qiao, K Feng - Landslides, 2018 - Springer
Lvliang airport is a typical loess filling engineering located in 20.5 km north of Lvliang City in
Shanxi Province, China. By the end of March 2012, 14 fissures extending more than 7.5 m …

Saturated hydraulic conductivity of problematic soils measured by a newly developed low-compliance triaxial permeameter

H Sadeghi, P AliPanahi - Engineering Geology, 2020 - Elsevier
Research on the reliable characterization of saturated permeability has received great yet
necessary attention globally. However, most studies were carried out on soils with a …

Effect of microstructure on shear strength and dilatancy of unsaturated loess at high suctions

CWW Ng, H Sadeghi, F Jafarzadeh… - Canadian …, 2020 - cdnsciencepub.com
To investigate the influences of microstructure changes on dilatancy of unsaturated loess at
high suctions, a direct shear box device using the vapour equilibrium technique was used …

Derivation of site-specific soil-water characteristic curve (SWCC) from extremely sparse experimental data by hierarchical Bayesian method with consideration of …

T Zhao, Y Yang, L Xu, SF Lu - Engineering Geology, 2024 - Elsevier
Soil-water characteristic curves (SWCCs) play a crucial role in understanding soil behavior
related to water movement and soil moisture effects, rendering them an essential tool in …