Results 11 to 20 of about 7,063 (264)

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

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

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

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

UH model for ideal expansive unsaturated soils

open access: yesYantu gongcheng xuebao, 2023
The expansive unsaturated soils are characterised by the behaviour of volume increase and strength reduction during wetting, which may cause nonuniform foundation settlement and further result in cracking of overlaying buildings.
YAO Yangping , TIAN Yichuan , CUI Wenjie
doaj   +1 more source

Unsaturated soils in the context of tropical soils

open access: yesSoils and Rocks, 2021
Abstract The practice of geotechnical engineering in tropical climate regions must consider the use of unsaturated soil concepts. However, these concepts must also take into account the specific behavior traits of tropical soils, particularly those related to soil aggregation, pore structure, and mineralogy.
Carvalho, José Camapum de   +1 more
openaire   +3 more sources

Strength Theory Model of Unsaturated Soils with Suction Stress Concept

open access: yesJournal of Applied Mathematics, 2013
A theoretical model is developed for describing the strength property of unsaturated soils. The model is able to predict conveniently the strength changes of unsaturated soils undergoing repeated changes of water content. Suction stress is adopted in the
Pan Chen   +3 more
doaj   +1 more source

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