Experimental Evaluation of the Pore-Access Size Distribution of Sands

Feia, Sadok; Ghabezloo, Siavash; Bruchon, J.-F.; Sulem, Jean; Canou, Jean; Dupla, Jean Claude

doi:10.1520/gtj20130126

Cited by 24 publications

(13 citation statements)

References 14 publications

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“…An evaluation of the pore access size distribution (D p ) of these sands by a method similar to a hanging column was performed by Feia et al 19 This method is based on the evaluation of the drying path water retention curve of the sand in an oedometric cell. From the retention curve, the pore access size distribution is evaluated by using the Young-Laplace law (Fig.…”

Section: Methodsmentioning

confidence: 99%

“…To investigate the influence of clogging on the pore structure of the tested sand, pore access size distribution of the material has been evaluated before and after injection using the method presented by Feia et al 19 It should be mentioned that this experiment is performed after the test N4. The pore size distribution is evaluated on a sample with a diameter of 7 cm and a height of 2.6 cm.…”

Section: Injection Cellmentioning

confidence: 99%

See 1 more Smart Citation

Experimental investigation of particle suspension injection and permeability impairment in porous media

Feia¹,

Dupla²,

Ghabezloo³

et al. 2015

Geomechanics for Energy and the Environment

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Section: Methodsmentioning

confidence: 99%

Section: Injection Cellmentioning

confidence: 99%

Experimental investigation of particle suspension injection and permeability impairment in porous media

Feia¹,

Dupla²,

Ghabezloo³

et al. 2015

Geomechanics for Energy and the Environment

Self Cite

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“…A pronounced change in the hydraulic conductivity takes place during grain crushing (hypothesized in Lade et al (1996); measured in David et al (1994) and 2001; Al Hattamleh et al (2013); Feia et al (2014)). This situation may arise in various engineering systems that experience a marked increase in effective stress, from compacted fills to production wells subjected to high depressurization.…”

Section: Grain Breakagementioning

confidence: 99%

The hydraulic conductivity of sediments: A pore size perspective

Ren

Santamarina

2018

Engineering Geology

153

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This article presents an analysis of previously published hydraulic conductivity data for a wide range of sediments. All soils exhibit a prevalent power trend between the hydraulic conductivity and void ratio. Data trends span 12 orders of magnitude in hydraulic conductivity and collapse onto a single narrow trend when the hydraulic conductivity data are plotted versus the mean pore size, estimated using void ratio and specific surface area measurements. The sensitivity of hydraulic conductivity to changes in the void ratio is higher than the theoretical value due to two concurrent phenomena: 1) percolating large pores are responsible for most of the flow, and 2) the larger pores close first during compaction. The prediction of hydraulic conductivity based on macroscale index parameters in this and similar previous studies has reached an asymptote in the range of k meas /5k predict 5k meas. The remaining uncertainty underscores the important role of underlying sediment characteristics such as pore size distribution, shape, and connectivity that are not measured with index properties. Furthermore, the anisotropy in hydraulic conductivity cannot be recovered from scalar parameters such as index properties. Overall, results highlight the robustness of the physics inspired data scrutiny based Hagen-Poiseuille and Kozeny-Carman analyses.

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“…From the summary of the pedotransfer functions in Table , it can be observed that the parameter

α

, which is related to air entry value, is inversely proportional to a measure of mean particle size in general. The parameter

n

, associated with the slope of desaturation in water retention curve, is in function of a measure of grain size uniformity as the desaturation process is physically governed by the pore size distribution which has an intrinsic relationship with particle size distribution [ Feia et al ., ]. This is schematically summarized in Figures a and c.…”

Section: General Relationship Between Wrc Strength and Psdmentioning

confidence: 99%

Estimating water retention curves and strength properties of unsaturated sandy soils from basic soil gradation parameters

Wang

Baudin

et al. 2017

Water Resources Research

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This study proposed two pedotransfer functions (PTFs) to estimate sandy soil water retention curves. It is based on the van Genuchten's water retention model and from a semiphysical and semistatistical approach. Basic gradation parameters of d60 as particle size at 60% passing and the coefficient of uniformity Cu are employed in the PTFs with two idealized conditions, the monosized scenario and the extremely polydisperse condition, satisfied. Water retention tests are carried out on eight granular materials with narrow particle size distributions as supplementary data of the UNSODA database. The air entry value is expressed as inversely proportional to d60 and the parameter n, which is related to slope of water retention curve, is a function of Cu. The proposed PTFs, although have fewer parameters, have better fitness than previous PTFs for sandy soils. Furthermore, by incorporating with the suction stress definition, the proposed pedotransfer functions are imbedded in shear strength equations which provide a way to estimate capillary induced tensile strength or cohesion at a certain suction or degree of saturation from basic soil gradation parameters. The estimation shows quantitative agreement with experimental data in literature, and it also explains that the capillary‐induced cohesion is generally higher for materials with finer mean particle size or higher polydispersity.

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Experimental Evaluation of the Pore-Access Size Distribution of Sands

Cited by 24 publications

References 14 publications

Experimental investigation of particle suspension injection and permeability impairment in porous media

Experimental investigation of particle suspension injection and permeability impairment in porous media

The hydraulic conductivity of sediments: A pore size perspective

Estimating water retention curves and strength properties of unsaturated sandy soils from basic soil gradation parameters

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