Academic literature on the topic 'Falling-head permeameter'

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Journal articles on the topic "Falling-head permeameter"

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Tan, S. A. "A Simple Automatic Falling Head Permeameter." Soils and Foundations 29, no. 1 (1989): 161–64. http://dx.doi.org/10.3208/sandf1972.29.161.

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2

Philip, J. R. "Approximate analysis of falling-head lined borehole permeameter." Water Resources Research 29, no. 11 (1993): 3763–68. http://dx.doi.org/10.1029/93wr01688.

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3

Malama, Bwalya, and André Revil. "Modeling Transient Streaming Potentials in Falling-Head Permeameter Tests." Groundwater 52, no. 4 (2013): 535–49. http://dx.doi.org/10.1111/gwat.12081.

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LEE, D. M., D. E. ELRICK, W. D. REYNOLDS, and B. E. CLOTHIER. "A COMPARISON OF THREE FIELD METHODS FOR MEASURING SATURATED HYDRAULIC CONDUCTIVITY." Canadian Journal of Soil Science 65, no. 3 (1985): 563–73. http://dx.doi.org/10.4141/cjss85-060.

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The saturated hydraulic conductivity, Ks, was measured on a loamy sand, a fine sandy loam, a silt loam and a clay at four 100-m2-area sites in southern Ontario. Twenty measurements of Ks were obtained by each of three different measurement techniques at each of the four sites. The techniques included: (1) the air-entry permeameter method; (2) the constant head well permeameter method using the Guelph Permeameter; and (3) the falling-head permeameter method applied to small soil cores. The Ks data were found to be better described by the log-normal frequency distribution than by the normal freq
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BUCKLAND, G. D., D. B. HARKER, and T. G. SOMMERFELDT. "COMPARISON OF METHODS FOR DETERMINING SATURATED HYDRAULIC CONDUCTIVITY AND DRAINABLE POROSITY OF TWO SOUTHERN ALBERTA SOILS." Canadian Journal of Soil Science 66, no. 2 (1986): 249–59. http://dx.doi.org/10.4141/cjss86-027.

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Saturated hydraulic conductivity (Ks) and drainable porosity (f) determined by different methods and for different depths were compared with those determined from the performance of drainage systems installed at two locations. These comparisons were made to determine which methods are suitable for use in subsurface drainage design. Auger hole and constant-head well permeameter Ks were 140 and 110%, respectively, of Ks determined from subsurface drains. Agreement of horizontal or vertical Ks, from in situ falling-head permeameters; to other methods was satisfactory providing sample numbers were
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Hernandez-Saenz, Maria A., Edith Arámbula-Mercado, and Amy Epps Martin. "Evaluation of Functionality in Porous Friction Courses." Transportation Research Record: Journal of the Transportation Research Board 2633, no. 1 (2017): 25–36. http://dx.doi.org/10.3141/2633-05.

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Porous friction courses (PFCs) are employed as surface layers primarily because of their functionality (i.e., their high permeability and noise absorption capability). In this study, the functionality of PFCs was evaluated through permeability and noise absorption tests in pavement structures of different thicknesses (i.e., 0.75, 1.5, and 2.5 in.), each at two air void contents (i.e., design and construction). Permeability was evaluated in the laboratory and the field with the Texas Department of Transportation (DOT) permeameter, the National Center of Asphalt Technology (NCAT) permeameter, an
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Sadasivan, Chander, Erica Swartwout, Ari D. Kappel, Henry H. Woo, David J. Fiorella, and Barry B. Lieber. "In vitro measurement of the permeability of endovascular coils deployed in cerebral aneurysms." Journal of NeuroInterventional Surgery 10, no. 9 (2018): 896–900. http://dx.doi.org/10.1136/neurintsurg-2017-013481.

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Background and purposeAneurysm recurrence is the primary limitation of endovascular coiling treatment for cerebral aneurysms. Coiling is currently quantified by a volumetric porosity measure called packing density (pd). Blood flow through a coil mass depends on the permeability of the coil mass, and not just its pd. The permeability of coil masses has not yet been quantified. Here we measure coil permeability with a traditional falling-head permeameter modified to incorporate idealized aneurysms.MethodsSilicone replicas of idealized aneurysms were manufactured with three different aneurysm dia
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Taylor, Andrew R., Sébastien Lamontagne, and Russell S. Crosbie. "Measurements of riverbed hydraulic conductivity in a semi-arid lowland river system (Murray–Darling Basin, Australia)." Soil Research 51, no. 5 (2013): 363. http://dx.doi.org/10.1071/sr13090.

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Riverbed hydraulic conductivity (Kr) was measured along one river reach in four tributaries of the Murray–Darling Basin (MDB) in south-eastern Australia. Two techniques were trialled: in-river falling-head tests in high Kr sediments, and laboratory evaporation tests on intact riverbed cores for low Kr sediments. In-river falling-head tests were conducted using two types of permeameter: a steel-base permeameter or a stand-pipe permeameter. Kr was found to range from 10–10 to 10–3 m s–1, corresponding to a range in riverbed sediment textures from clay to silty gravels, respectively. Although the
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Reynolds, W. D. "Measuring Soil Hydraulic Properties Using a Cased Borehole Permeameter: Falling-Head Analysis." Vadose Zone Journal 10, no. 3 (2011): 999–1015. http://dx.doi.org/10.2136/vzj2010.0145.

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Wise, William R., and Raleigh D. Myers. "MODIFIED FALLING HEAD PERMEAMETER ANALYSES OF SOILS FROM TWO SOUTH FLORIDA WETLANDS." Journal of the American Water Resources Association 38, no. 1 (2002): 111–17. http://dx.doi.org/10.1111/j.1752-1688.2002.tb01539.x.

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Dissertations / Theses on the topic "Falling-head permeameter"

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Cavdar, Sevgi. "Assessing the Transient Flow Behavior in Falling-head Permeameter Tests." Thesis, 2013. http://hdl.handle.net/1969.1/149519.

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The proportionality constant in Darcy's Law is called hydraulic conductivity (K), and it is the most fundamental parameter to groundwater studies. There are a number of in situ and laboratory techniques employed to determine K, one of which is falling head permeameter (FHP). In FHP, determining K involves two steps: measuring hydraulic head change over time and calculating the K value. In the past, calculating K was done using Darcy's Law, which states linear correlation between the flux and the hydraulic gradient, but this is only true when the inertial forces are negligible at small velociti
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Book chapters on the topic "Falling-head permeameter"

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"falling-head permeameter." In Dictionary Geotechnical Engineering/Wörterbuch GeoTechnik. Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-41714-6_60181.

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