MATHEMATICAL ANALYSIS OF SWELL PRESSURE WITH TIME FOR PARTLY SATURATED CLAYS

EXPERIMENTAL RESULTS OF SWELL PRESSURE UNDER COMPLETE INUNDATION SHOW THE CURVE OF PRESSURE AGAINST LOG OF TIME HAS A TYPICAL REVERSED S SHAPE, SIMILAR TO THAT OF CONSOLIDATION. NO ENDEAVOUR HOWEVER, HAS BEEN MADE TO EXPLAIN THIS BEHAVIUOR THEORETICALLY. THIS PAPER DEALS WITH THE MATHEMATICAL DERIVATION OF THE SWELL PRESSURE FUNCTION AND THE DEFINITION OF THE PARAMETERS INVOLVED. UNDER CERTAIN SIMPLIFIED ASSUMPTIONS, IT IS SHOWN THAT THE DISSIPATION OF THE SUCTION DURING A SWELLING TEST IS PROPORTIONAL TO THE DEVELOPMENT OF THE SWELL PRESSURE AND THAT THE DISSIPATION FUNCTION IS MATHEMATICALLY IDENTICAL WITH THAT OF THE CONSOLIDATION PROCESS. THE SOLUTION OF THIS FUNCTION YIELDED A RATHER SIMPLE EXPRESSION FOR THE SWELL PRESSURE, WHICH AGREES WITH VALUES OBTAINED WHEN THE CLAY IS SATURATED AND RESULTS IN A FRACTION OF THE INITIAL SUCTION WHEN THE CLAY IS PARTLY SATURATED. /CGRA/

  • Supplemental Notes:
    • Vol 5, No 4, PP 217-224, 1 FIG, 10 REF
  • Authors:
    • Baker, R
    • Kassif, G
  • Publication Date: 1968-11

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Filing Info

  • Accession Number: 00237290
  • Record Type: Publication
  • Source Agency: CANADIAN GOOD ROADS ASSOCIATION
  • Files: TRIS
  • Created Date: Nov 23 1970 12:00AM