Results 21 to 30 of about 188,217 (357)

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

Influence of initial compaction and confining pressure on the hydraulic conductivity of compacted iron ore tailings [PDF]

open access: yesE3S Web of Conferences
The hydraulic conductivity of iron tailings is an important factor affecting the stability of tailings storage facilities. Stacking compacted filtered ore tailings is a promising alternative for safer tailings disposal. These tailings storage facilities’
dos Santos Roberto Aguiar   +4 more
doaj   +1 more source

Estimation of aquifer lower layer hydraulic conductivity values through base flow hydrograph rising limb analysis [PDF]

open access: yes, 2010
The estimation of catchment-averaged aquifer hydraulic conductivity values is usually performed through a base flow recession analysis. Relationships between the first time derivatives of the base flow and the base flow values themselves, derived for ...
Pauwels, Valentijn, Troch, Peter A
core   +1 more source

Uncertainty in the determination of soil hydraulic parameters and its influence on the performance of two hydrological models of different complexity [PDF]

open access: yes, 2009
Data of soil hydraulic properties forms often a limiting factor in unsaturated zone modelling, especially at the larger scales. Investigations for the hydraulic characterization of soils are time-consuming and costly, and the accuracy of the results ...
Baroni, G.   +5 more
core   +3 more sources

On the influence of the spatial distribution of fine content in the hydraulic conductivity of sand-clay mixtures

open access: yesEarth Sciences Research Journal, 2018
Sand-clay mixtures are one of the most usual types of soils in geotechnical engineering. These soils present a hydraulic conductivity which highly depends on the fine content.
William Mario Fuentes   +2 more
doaj   +1 more source

Hydraulic conductivity of rice roots [PDF]

open access: yesJournal of Experimental Botany, 2001
A pressure chamber and a root pressure probe technique have been used to measure hydraulic conductivities of rice roots (root Lp(r) per m(2) of root surface area). Young plants of two rice (Oryza sativa L.) varieties (an upland variety, cv. Azucena and a lowland variety, cv.
N, Miyamoto   +3 more
openaire   +2 more sources

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.
Bear J.   +23 more
core   +1 more source

Hydraulic Conductivity of Rock Masses Surrounding Water Curtain Boreholes for Underground Oil Storage Caverns

open access: yesEnergies, 2021
The assessment of the groundwater flow rate around the cavern periphery is a critical requirement for the design of underground water-sealed oil storage caverns and commonly made through seepage analysis, where a reasonable estimation of the hydraulic ...
Qi-Hua Zhang   +4 more
doaj   +1 more source

A double scale methodology to investigate flow in karst fractured media via numerical analysis. The Cassino plain case study (Central Apennine, Italy) [PDF]

open access: yes, 2018
A methodology to evaluate the hydraulic conductivity of the karstmedia at a regional scale has been proposed, combining pumping tests and the hydrostructural approach, evaluating the hydraulic conductivity of fractured rocks at the block scale ...
Lancia, M., Petitta, M., Saroli, M.
core   +3 more sources

Transform-based particle filtering for elliptic Bayesian inverse problems [PDF]

open access: yes, 2019
We introduce optimal transport based resampling in adaptive SMC. We consider elliptic inverse problems of inferring hydraulic conductivity from pressure measurements.
Dubinkina, Svetlana   +2 more
core   +4 more sources

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