Effective unsaturated hydraulic conductivity of layered sands

T. C J Yeh, D. J. Harvey

Research output: Contribution to journalArticle

56 Scopus citations

Abstract

The unsaturated hydraulic conductivity, K(ψ), of two homogeneous sands and one layered sand composed of the two homogeneous sands was measured using the steady-state flux control method. The averaged K(ψ) curves of the two homogeneous sands using a direct averaging approach were compared with the measured layered sand K(ψ) data. The result shows that the geometric mean of hydraulic conductivity-suction curves of the coarse and medium sands approximates the measured hydraulic conductivity-suction curve of the layered sand. The observed suction variance and effective hydraulic conductivity were compared with expressions developed from a stochastic theory. The results support the stochastic approach. -from Authors

Original languageEnglish (US)
Pages (from-to)1271-1279
Number of pages9
JournalWater Resources Research
Volume26
Issue number6
DOIs
Publication statusPublished - 1990
Externally publishedYes

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ASJC Scopus subject areas

  • Environmental Science(all)
  • Environmental Chemistry
  • Aquatic Science
  • Water Science and Technology

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