DARCYS LAW IN SATURATED KAOLINITE

DATA OBTAINED WITH A NEW LABORATORY TECHNIQUE FOR MEASURING THE HYDRAULIC CONDUCTIVITY OF SATURATED CLAYS SHOW THAT DARCYS LAW IS OBEYED AT LOW GRADIENTS IN SATURATED KAOLINITE OVER A WIDE RANGE OF POROSITIES. THE NEW TECHNIQUE INVOLVES PRODUCING ARBITRARY CONSTANT FLOW RATES THROUGH A RIGIDLY CONFINED CLAY SAMPLE, USING A MULTISPEED SYRINGE PUMP, AND MEASURING THE GRADIENTS INDUCED THEREBY WITH A DIFFERENTIAL PRESSURE TRANSDUCER. THIS PROCEDURE AVOIDS THE ERRORS IN THE CONVENTIONAL TECHNIQUE THAT ARISE FROM ATMOSPHERIC CONTAMINATION AND FROM THE LONG TIME INTERVALS NEEDED TO OBTAIN MEASURABLE FLOW RATES. THE RESULTS PRESENTED, TOGETHER WITH THE PREVIOUS EVIDENCE, SUGGEST THAT DARCYS LAW IS VALID IN MANY SATURATED NATURAL CLAYS AND CLAYEY SEDIMENTS, BUT THAT EXCEPTIONS MAY OCCUR IN EXTREMELY FINE-GRAINED CLAYS AND ALSO WHERE HIGH GRADIENTS ARE PRESENT IN SHALLOW, UNCONFINED SEDIMENTS OR IN GRANULAR SOILS CONTAINING SMALL AMOUNTS OF CLAY. /AUTHOR/

  • Supplemental Notes:
    • Vol 2, No 2, PP 287-295, 5 FIG, 1 TAB, 15 REF
  • Corporate Authors:

    Water Resources Research

    ,    
  • Authors:
    • Olsen, H W
  • Publication Date: 1966

Subject/Index Terms

Filing Info

  • Accession Number: 00234091
  • Record Type: Publication
  • Source Agency: Geoscience Abstracts
  • Files: TRIS
  • Created Date: Aug 4 1994 12:00AM