Results 31 to 40 of about 65,186 (304)

Permeability Functions for Unsaturated Soils

open access: yesJournal of Geotechnical and Geoenvironmental Engineering, 1997
This paper examines the three categories of permeability functions for unsaturated soils, including empirical, macroscopic, and statistical models. The theoretical backgrounds and performance of each category are examined against various experimental data.
Leong, Eng Choon, Rahardjo, Harianto
openaire   +2 more sources

Simulating infiltration processes into fractured and swelling soils as triggering factors of landslides [PDF]

open access: yes, 2013
The influence of rainfall in triggering landslides is a widely discussed topic in scientific literature. The slope stability of fractured surface soils is often influenced by the soil suction.
Galeandro, A, Simeone, V, Šimunek, J
core   +2 more sources

Fully undrained cyclic loading simulation on unsaturated soils using an elastoplastic model for unsaturated soils

open access: yesE3S Web of Conferences, 2016
Several researchers have reported that Bishop’s mean effective stress decreases in unsaturated soils under fully undrained cyclic loading conditions, and unsaturated soils are finally liquefied in a similar manner as saturated soils.
Komolvilas Veerayut, Kikumoto Mamoru
doaj   +1 more source

A structural bounding surface constitutive model for unsaturated soils and its verification

open access: yesYantu gongcheng xuebao, 2022
Most soils have both unsaturated and structural properties. The establishment of a constitutive model of unsaturated soils considering the structure is of great significance for analyzing the mechanical properties of unsaturated soils.
WANG Chun-ying 1, 2, 3, CAI Guo-qing 1, 2, HAN Bo-wen 1, 2, SU Yan-lin 1, 2, LI Meng-zi 1, 2, LI Jian 1, 2
doaj   +1 more source

Improved SfM-MVS approach using artificial backgrounds

open access: yesSoils and Foundations
With the development of computer vision technology, structure from motion and multiview-stereo (SfM-MVS) approach has been widely applied in the geotechnical field.
Danxi Sun   +6 more
doaj   +1 more source

A Review on the Resilient Response of Unsaturated Subgrade Soils

open access: yesAdvances in Civil Engineering, 2020
Considering the great contribution of subgrade modulus to the overall performance of roads or railways, it is crucial to provide the best prediction of resilient modulus for their foundations. Incorporating the seasonal variation of moisture content, the
Xuanxuan Chu
doaj   +1 more source

A modification of the mixed form of Richards equation and its application in vertically inhomogeneous soils [PDF]

open access: yes, 2011
Recently, new soil data maps were developed, which include vertical soil properties like soil type. Implementing those into a multilayer Soil-Vegetation-Atmosphere-Transfer (SVAT) scheme, discontinuities in the water content occur at the interface ...
Ahrens, Bodo, Kalinka, Frank
core   +2 more sources

Unsaturated shear strength characteristics of coarse-fine mixed soils in a wide range of degree of saturation: experimental phenomena

open access: yesYantu gongcheng xuebao, 2023
The coarse-fine mixed soils are widely distributed in natural and geotechnical engineering practices. Their strength is vital to the stability of geotechnical engineering (e.g., slopes, foundation pits and retaining walls). However, the unsaturated shear
ZHAO Yuxin 1, ZHANG Luqian 1, 2, LI Xu 1, ZHAO Hongfen 3, 4
doaj   +1 more source

Determining the unsaturated hydraulic conductivity of a compacted sand-bentonite mixture under constant volume and free-swell conditions [PDF]

open access: yes, 2008
Highly compacted sand-bentonite mixtures are often considered as possible engineered barriers in deep high-level radioactive waste disposals. In-situ, the saturation of these barriers from their initially unsaturated state is a complex hydro-mechanical ...
A.M. Tang   +26 more
core   +4 more sources

Slaking mechanisms of a mudstone and prediction of its number-size distribution considering shape evolution

open access: yesSoils and Foundations
The wide distribution of mudstone poses challenges to efficient construction and safe long-term maintenance of infrastructure, primarily due to its susceptibility to slaking.
Danxi Sun   +5 more
doaj   +1 more source

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