CHEMICO/OSMOTIC EFFECTS IN FINE-GRAINED SOILS

A THEORY TO DESCRIBE THE SIMULTANEOUS COUPLED DIFFUSIONAL FLOW OF SALT AND WATER IN SOILS IS SUMMARIZED. EXAMINATION OF THE COUPLING EFFECTS INDICATED BY THE THEORY AND A COMPUTER ANALYSIS OF CONSOLIDATION CAUSED BY CHEMICO-OSMOTIC COUPLING SHOWS THAT THE EFFECTS OF COUPLING SHOULD INCREASE AS SOIL VOID RATIO DECREASES AND SOIL COMPRESSIBILITY AND SALT CONCENTRATION DIFFERENCES INCREASE. CHEMICO-OSMOTIC CONSOLIDATION IS LIKELY TO BE SMALL FOR MOST SOILS, EXCEPT FOR VERY FINE-GRAINED ACTIVE CLAYS LIKE BENTONITE. THESE AND OTHER STUDIES HAVE SHOWN THAT CHEMICO-OSMOTIC COUPLING IS CAPABLE OF MOVING SOIL PORE WATER AND DISSOLVED SALTS AND THAT CHEMICO-OSMOTIC SOIL STABILIZATION MIGHT BE FEASIBLE IN CERTAIN CASES. /AUTHOR/

  • Supplemental Notes:
    • PROC PAPER 9678
  • Authors:
    • Mitchell, J K
    • Greenberg, J A
    • Witherspoon, P A
  • Publication Date: 1973-4

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Filing Info

  • Accession Number: 00238131
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jun 19 1973 12:00AM