Results 11 to 20 of about 158,890 (259)

SimuIating landsIides using two-phase two-point material point method [PDF]

open access: yesE3S Web of Conferences, 2023
Material point method (MPM) is an effective numerical method for large-deformation analysis under unsaturated conditions. In the previous studies, water retention ability and permeability function were assumed to be Independent of soil deformation ...
Zhan Zhiqi, Zhou Chao
doaj   +1 more source

Order Out of Chaos in Soil–Water Retention Curves

open access: yesWater, 2022
Water flow in porous media is one of many phenomena in nature that can demonstrate both simple and complex behaviors. A soil–water retention curve (SWRC) is needed to characterize this flow properly. This curve relates the soil water content and the matric potential (or porepressure), being fundamental for simulating unsaturated soil behaviors.
Lucas Parreira de Faria Borges   +2 more
openaire   +2 more sources

Parameter estimation of soil water retention curve with Rao-1 algorithm

open access: yesJournal of Agricultural Engineering, 2022
The soil water retention curve (SWRC) has a significant role in determining the unsaturated properties of soil. A stochastic optimization algorithm named Rao-1 algorithm is employed to estimate the parameters of the SWRC model in this paper.
Zhongju Wang, Chao Huang, Long Wang
doaj   +1 more source

Water retention curve model based on micro-pore filling and capillary condensation theories

open access: yesRock and Soil Mechanics, 2021
Water retention curve (WRC) is an important tool to study the hydraulic and mechanical properties of unsaturated soils, such as permeability, strength and deformation properties.
LIU Zhang-rong   +5 more
doaj   +1 more source

Relating Hydraulic Conductivity Curve to Soil-Water Retention Curve Using a Fractal Model

open access: yesMathematics, 2020
In the study of water transference in soil according to Darcy law, the knowledge of hydrodynamic characteristics, formed by the water retention curve θ(ψ), and the hydraulic conductivity curve K(ψ) are of great importance. The first one relates the water
Carlos Fuentes   +2 more
doaj   +1 more source

Water retention curves of lightweight cemented soils [PDF]

open access: yesE3S Web of Conferences, 2020
In the present paper an experimental investigation on water retention properties of lightweight cemented soils (LWCS) taking into account the effects of air foam content and curing time is presented. This experimental study, aimed at determining the suction range corresponding to significant changes in water content, is preliminary to future ...
Vitale E.   +7 more
openaire   +4 more sources

Estimation of soil water retention curve using fractal dimension

open access: yesJournal of Applied Sciences and Environmental Management, 2018
The soil water retention curve (SWRC) is a fundamental hydraulic property majorly used to study flow transport in soils and calculate plant-available water.
Z.M. Seyedeh   +3 more
doaj   +3 more sources

Soil-water characteristic of biochar-clay mixture in the full suction range

open access: yesRock and Soil Mechanics, 2022
Soil-water characteristic curve (SWCC) plays an important role in defining the hydro-mechanical behavior of unsaturated soils. Biochar has the properties of porous structure, high specific surface area and high adsorption.
LI Ming-yu   +3 more
doaj   +1 more source

Spatial Variability of Water Retention Curve Fractal Dimension

open access: yesACI Avances en Ciencias e Ingenierías, 2015
The study of spatial variability of specific quantities characterizing the unsaturated soil is very important for the evaluation of polluting phenomena.
Samuele De Bartolo   +3 more
doaj   +1 more source

Parametric soil water retention models: a critical evaluation of expressions for the full moisture range [PDF]

open access: yesHydrology and Earth System Sciences, 2018
Few parametric expressions for the soil water retention curve are suitable for dry conditions. Furthermore, expressions for the soil hydraulic conductivity curves associated with parametric retention functions can behave unrealistically near ...
R. Madi   +4 more
doaj   +1 more source

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