Research Article
Jul 1965
Pumping Test to Determine Permeability Ratio
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VIEW THE REPLYPublication: Journal of the Soil Mechanics and Foundations Division
Volume 91, Issue 4
Abstract
Field pumping tests on fully and partially penetrating wells in the alluvial valley of the lower Arkansas River indicate a ratio of horizontal to vertical permeability of approximately 2. The results of these test are considered typical for alluvial sands of the Arkansas River where the aquifer is fairly homogeneous and there are no impervious layers of significant areal extent. The ratio kH/kV was determined by comparing hydrostatic potentials around the test well with theoretical potentials determined from electrical analogy model studies, and from Muskat's equation for flow to partially penetrating wells using well flows and drawdowns measured in the field. The average horizontal coefficient of permeability (kH) was found, from the test results, to be approximately 700×10-4 cm per sec. Tests on a fully penetrating well, using a well flow meter to measure the flow from various strata, indicated variations in the horizontal permeability of the various strata from 200 to 1,200×10-4 cm per sec. The pumping tests also indicated a logarithmic relationship between the effective grain size (D10) and the coefficient of horizontal permeability (kH).
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Published In
Journal of the Soil Mechanics and Foundations Division
Volume 91 • Issue 4 • July 1965
Pages: 151 - 183
Copyright
© 1965 American Society of Civil Engineers.
History
Published in print: Jul 1965
Published online: Feb 12, 2021
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Charles I. Mansur, F.ASCE
Vice-Pres., Soils and Foundations, Fruco & Associates, Inc., St. Louis, Mo.
Rudy J. Dietrich, AM.ASCE
Senior Soils Engr., Fruco & Associates, Inc., St. Louis, Mo.
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Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
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