SETTLEMENT OF LOW EMBANKMENTS ON THICK COMPRESSIBLE SOIL

The field and laboratory compression behaviour of a soft estuarine silty clay is examined with reference to conventional one-dimensional consolidation theory. By means of a dimensionless plotting technique secondary consolidation of laboratory samples is shown to produce significant modifications to a theoretical curve. Settlement characteristics of a wide road embankment on a thick deposit of the soil do not duplicate the laboratory characteristics. Field settlements are appreciably underestimated by one dimensional theory. Although excess pore pressures beneath the embankments are large, even after a period of five years, undrained settlements account for only a small proportion of the total. The excess pore pressure distribution may not be used to estimate consolidation times or the degree of consolidation at any point in time. (TRRL)

  • Availability:
  • Supplemental Notes:
    • Papers presented during the Geomechanics-Interaction, Fourth Australia-New Zealand conference on Geomechanics, Perth, Western Australia, 14-18 May 1984, Volumes I and II.
  • Corporate Authors:

    Institution of Engineers

    11 National Circuit
    Barton, A.C.T.,   Australia 
  • Authors:
    • MCDONALD, P
    • Cimino, D J
  • Publication Date: 1984-3

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. 310-315
  • Monograph Title: GEOMECHANICS - INTERACTION. FOURTH AUSTRALIA - NEW ZEALAND CONFERENCE ON GEOMECHANICS, PERTH, WESTERN AUSTRALIA, 14-18 MAY 1984. PREPRINTS OF PAPERS. VOLUMES I AND II
  • Serial:
    • Issue Number: 84/2

Subject/Index Terms

Filing Info

  • Accession Number: 00392043
  • Record Type: Publication
  • Source Agency: ARRB
  • ISBN: 0-85825-208-2
  • Files: ITRD, TRIS, ATRI
  • Created Date: Mar 29 1985 12:00AM