COMPUTATION OF THE COMPRESSION OF PEAT FROM THE CONTENT OF ORGANIC MATTER AND WATER

THE SUBSIDENCE OF SOIL CAN BE CAUSED BY COMPRESSION AND SHRINKAGE. THE COMPRESSION CAN BE CALCULATED FROM THE EMPIRICAL LAW OF TERZAGHI, THE SHRINKAGE OF SOIL LAYERS IS COMPUTED BY USING THE EMPIRICAL "LAW OF SOIL RIPENING." BY COMIBINING BOTH LAWS IT IS PROVED THAT FOR SATURATED PEAT SOILS A RELATION EXISTS BETWEEN THE WATER/ORGANIC MATTER RATIO (A/H) AND THE MAXIMUM OVERBURDEN PRESSURE AFFECTING THE PEAT. IN ORDER TO STUDY THIS RELATION, A SAMPLE OF 25 PEAT LAYERS WAS EXAMINED IN-SITU. IN PEAT LAYERS DEEPER THAN 0.50 TO 1.00 M BELOW THE PHREATIC LEVEL A RATHER CLOSE RELATION WAS FOUND, IRRESPECTIVE OF THE TYPE OF VEGETABLE MATTER. THE DESCRIBED METHOD ENABLES THE COMPRESSION OF PEAT LAYERS TO BE PREDICTED QUICKLY AND AT LOW COST. UNDISTURBED SOIL SAMPLES ARE NOT REQUIRED AND THE DERIVED FORMULAS HOLD FOR A VERY WIDE RANGE OF PRESSURE. NO PREDICTION, HOWEVER, CAN BE MADE OF THE PROGRESS OF COMPRESSION IN THE COURSE OF TIME. /SWOV/RWL/RRL/

  • Supplemental Notes:
    • No 13, pp B23-28, 1 FIG, 1 PHOT, 4 REF
  • Corporate Authors:

    NVA Oosthoek's Uitg-Mij

    Domstrat 11-13
    Utrecht,   Netherlands 
  • Authors:
    • Fokkens, B
  • Publication Date: 1970-3

Media Info

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Filing Info

  • Accession Number: 00234991
  • Record Type: Publication
  • Source Agency: Road Research Laboratory /UK
  • Files: TRIS
  • Created Date: Jul 18 1971 12:00AM