Results 21 to 30 of about 15,167 (290)

Estimation of hydraulic conductivity of unsaturated soils under entire suction range

open access: yesYantu gongcheng xuebao, 2022
The hydraulic conductivity of unsaturated soils controls their water flow. Most numerical softwares adopt the hydraulic conductivity function (HCF) as the input parameter to simulate the water flow in unsaturated soils.
ZHAI Qian 1, 2, ZHU Yi-yao 1, 2, YE Wei-min 3, DU Yan-jun 4, DAI Guo-liang 1, 2, ZHAO Xue-liang 1, 2
doaj   +1 more source

Elastic-viscoplastic constitutive model for overconsolidated unsaturated soils considering time effects and its verification

open access: yesYantu gongcheng xuebao, 2023
The time effects have a significant influence on the deformation characteristics of the overconsolidated unsaturated soils. Establishing an elastic-viscoplastic constitutive model for the overconsolidated unsaturated soils considering the time effects is
SU Yanlin 1, 2, CAI Guoqing 1, 2, LIU Yi 1, 2, SHAN Yepeng 1, 2, LI Jian 1, 2
doaj   +1 more source

A numerical technique for modeling the behavior of single piles in unsaturated soils [PDF]

open access: yesMATEC Web of Conferences, 2021
Pile foundations are widely used in both saturated and unsaturated soils. In certain scenarios, these foundations are subjected to combined vertical and lateral loads.
Cheng Xinting, Vanapalli Sai K.
doaj   +1 more source

Effect of compaction pressure on consolidation behaviour of unsaturated silty soil [PDF]

open access: yes, 2004
YesThe effect of compaction pressure on subsequent soil behaviour during isotropic consolidation has been investigated by conducting controlled-suction triaxial tests on samples of an unsaturated compacted silty soil.
Boot, John C.   +2 more
core   +1 more source

Numerical simulation of hydro-mechanical behaviors of unsaturated soils under fully undrained conditions

open access: yesYantu gongcheng xuebao, 2017
Volume changes take place during the fully undrained compression tests on unsaturated soils. It is more difficult to simulate the undrained mechanical behaviors of unsaturated soils than those of saturated soils.
LIU Wen-hua 1, 2, YANG Qing 2, TANG Xiao-wei 2, UZUOKA Ryosuke 3
doaj   +1 more source

State-of-the-Art Review of Utilization of Microbial-Induced Calcite Precipitation for Improving Moisture-Dependent Properties of Unsaturated Soils

open access: yesApplied Sciences, 2023
Unsaturated soil is a form of natural soil whose pores are filled by air and water. Different from saturated soil, the microstructure of unsaturated soil consists of three phases, namely, the solid phase (soil particle), vapor phase, and liquid phase ...
Jue Li   +3 more
doaj   +1 more source

An elasto-plastic model for unsaturated soil incorporating the effects of suction and degree of saturation on mechanical behaviour [PDF]

open access: yes, 2003
The paper presents an elasto-plastic model for unsaturated soils that takes explicitly into account the mechanisms with which suction affects mechanical behaviour as well as their dependence on degree of saturation.
Vaunat, J.   +11 more
core   +1 more source

Implicit integration algorithm of hydro-mechanical constitutive model for overconsolidated unsaturated soils and its application

open access: yesYantu gongcheng xuebao, 2018
The overconsolidated unsaturated soils emerge in many engineering projects. The constitutive models for unsaturated soils are very complicated due to the complex mechanical beahviour of overconsolidated unsaturated soils. A modified constitutive model is
LI Wu-gang 1, 2, YANG Qing 1
doaj   +1 more source

Estimation of the hydraulic parameters of unsaturated samples by electrical resistivity tomography [PDF]

open access: yes, 2012
In situ and laboratory experiments have shown that electrical resistivity tomography (ERT) is an effective tool to image transient phenomena in soils. However, its application in quantifying soil hydraulic parameters has been limited.
Musso, Guido   +6 more
core   +1 more source

One-Dimensional Consolidation Analysis of Unsaturated Soils under Cyclic Loadings

open access: yesShock and Vibration, 2020
This paper presents analytical solutions to Fredlund and Hasan’s one-dimensional consolidation equations for unsaturated soils subjected to various cyclic loadings.
Pyol Kim   +4 more
doaj   +1 more source

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