Mean Pore Sizes from Flow Measurements

by Richard P. Long, (M.ASCE), Assoc. Prof. of Civ. Engrg.; Univ. of Connecticut, Storrs, CT,
Thomas F. Zimmie, (M.ASCE), Natl. Sci. Foundation Postdoctoral Fellow; Norwegian Geotech. Inst., Oslo, Norway,

Serial Information: Journal of the Soil Mechanics and Foundations Division, 1973, Vol. 99, Issue 7, Pg. 583-587

Document Type: Journal Paper


A method is described in this note for determining the mean pore size of a porous plug from direct current measurements and hydraulic flows. This study deals with fitted glass disks having properties similar to a spectrum of soils ranging from a fine sand to a silty clay whose mean pore size can be determined by combining current characteristics with hydraulic permeability. The technique also appears promising for inactive clay.

Subject Headings: Flow measurement | Permeability (soil) | Clays | Pore size distribution | Porous media flow | Hydraulic properties | Hydraulics | Glass

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