The paper describes an investigation carried out to examine the factors influencing collapse settlement in compacted soils. This was largely done in the laboratory by means of oedometer tests on partly saturated specimens of three soils. Specimens were compacted directly into standard oedometer rings using a mould devised for this purpose. In this way sets of identical specimens could be made with any density and moisture content. The moisture content of each specimen was allowed to change so that each set covered the complete range of saturation. The oedometer tests were carried out in the same way as the partly saturated half of the double oedometer test, and the collapse was measured. Sets of tests were carried out in which the initial dry density, the compaction moisture content and the loading at wetting were each varied in turn. The results of the tests are reported, and the significance of each variable is assessed. (A) /TRRL/

  • Availability:
  • Corporate Authors:

    South African Institute of Civil Engineers

    2 Hollard Street
    Johannesburg,   South Africa 
  • Authors:
    • Pells, P
    • Robertson, A
    • Booth, A R
  • Publication Date: 1975


  • French

Media Info

  • Features: Figures; References; Tables;
  • Pagination: 7 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00134340
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • ISBN: 86961 0732
  • Report/Paper Numbers: Conf Paper
  • Files: ITRD, TRIS
  • Created Date: Sep 16 1976 12:00AM