Results 21 to 30 of about 6,046 (265)

Variable cross-sectional pore model to describe hydraulic conductivity and water retention behaviors of geotechnical materials

Yantu gongcheng xuebao, 2020
To investigate the contribution of their non-uniform cross-section to hydraulic conductivity and water retention behaviours for geotechnical materials, the pores can be simplified as variable cross-sectional assembly of cylindrical macro-pores with pore ...
ZHANG Zhao 1, CHENG Jing-xuan 1, LIU Feng-yin 1, QI Ji-lin 1, 2, CHAI Jun-rui 3, LI Hui-yong 4
doaj   +1 more source

Evaluation of Regression and Neuro_Fuzzy Models in Estimating Saturated Hydraulic Conductivity

مجله آب و خاک, 2015
Study of soil hydraulic properties such as saturated and unsaturated hydraulic conductivity is required in the environmental investigations. Despite numerous research, measuring saturated hydraulic conductivity using by direct methods are still costly ...
J. Behmanesh, E. Rezaie
doaj   +1 more source

Automation of the measurement of time record in determining the hydraulic conductivity of saturated soil [PDF]

Revista Brasileira de Engenharia Agrícola e Ambiental, 2022
The objective of this study was to automate the acquisition of water travel time, as well as the computation of hydraulic conductivity of saturated soil by the falling head method, using water sensors and the Arduino platform. To automate the measurement
Camila P. Cagna, Osvaldo Guedes Filho, Alexandre R. C. Silva, Cássio A. Tormena   +3 more
doaj   +1 more source

The Effect of Entrapped Air on the Quasi‐Saturated Soil Hydraulic Conductivity and Comparison with the Unsaturated Hydraulic Conductivity

Vadose Zone Journal, 2005
Entrapped air can greatly affect the hydraulic conductivity at or near saturation. In this study, we measured the hydraulic conductivity and volume of entrapped air in a quasi‐saturated soil. Two soils, a Masa sandy loam soil from weathered granite rock and a TUAT light clay andisol from volcanic ash, were used.
A. Sakaguchi, T. Nishimura, M. Kato
openaire   +1 more source

Controls on Saturated Hydraulic Conductivity in a Degrading Permafrost Peatland Complex [PDF]

Water Resources Research, 2023
AbstractPermafrost peatlands are vulnerable to rapid structural changes under climatic warming, including vertical collapse. Peatland water budgets, and therefore peat hydraulic properties, are important determinants of vegetation and carbon fluxes. Measurements of hydraulic properties exist for only a limited number of permafrost peatland locations ...
Fewster, R.E., Morris, P.J., Swindles, G.T., Baird, A.J., Turner, T.E., Ivanovic, R.F.   +5 more
openaire   +5 more sources

Saturated soil hydraulic conductivity and its determinants in grassland with varying levels of desertification in Northwest Liaoning Province

Guan'gai paishui xuebao
【Background and Objective】 The arid and semi-arid regions in Northwest Liaoning Province are characterized by low precipitation and high evaporation, leading to desertification, soil erosion and degradation.
JIANG Mengmeng, LUO Genhua, LYU Gang, FENG Menglong   +3 more
doaj   +1 more source

HYDRAULIC CONDUCTIVITY OF ESSENTIALLY SATURATED PEAT [PDF]

, 2008
The Savannah River National Laboratory measured the hydraulic conductivity of peat samples using method ASTM D4511-00. Four samples of peat were packed into 73mm diameter plastic tubes and saturated from the bottom up with water. The columns were packed with Premier ProMoss III TBK peat to a dry density of approximately 0.16 gm/cc (10 lb/ft3).
openaire   +2 more sources

Assessing Water Infiltration and Soil Water Repellency in Brazilian Atlantic Forest Soils

Applied Sciences, 2020
This study presents the results of the soil hydraulic characterization performed under three land covers, namely pasture, 9-year-old restored forest, and remnant forest, in the Brazilian Atlantic Forest.
Sergio Esteban Lozano-Baez, Miguel Cooper, Silvio Frosini de Barros Ferraz, Ricardo Ribeiro Rodrigues, Laurent Lassabatere, Mirko Castellini, Simone Di Prima   +6 more
doaj   +1 more source

Hydraulic and volume change behaviors of compacted highly expansive soil under cyclic wetting and drying

Journal of Rock Mechanics and Geotechnical Engineering, 2023
The wide engineered application of compacted expansive soils necessitates understanding their behavior under field conditions. The results of this study demonstrate how seasonal climatic variation and stress and boundary conditions individually or ...
Mohamed Farid Abbas, Abdullah Ali Shaker, Mosleh A. Al-Shamrani   +2 more
doaj   +1 more source

Comparison of Triply Periodic Minimal Surface Energy Absorbers Under Uniaxial Compressive Loading

Advanced Engineering Materials, EarlyView.
This study investigates LCD 3D printed Triply Periodic Minimal Surface (TPMS) structures as mechanical energy absorbers. By comparing various base designs and layered combinations under uniaxial compression, it identifies that a Diamond‐Gyroid sandwich structure offers superior performance.
Sergej Grednev, Noah‐Lean Roschlaub, Anne Jung   +2 more
wiley   +1 more source