SINGLE PARAMETER MODELS FOR PROGRESSIVE WEAKENING OF SOILS BY CYCLIC LOADING

One of the basic problems which arises in an evaluation of the stability of gravity structure foundations under severe storms is the modelling of soil behaviour under random cyclic loading. Phenomena such as progressive weakening, cumulative generation of pore-pressures and permanent strains, and ultimate liquefaction, have to be described in terms of the complete cyclic loading history. Many different procedures have been proposed, most of which can be interpreted as models with one single memory parameter. In this paper the underlying assumptions are made explicit, and a general single-parameter theory is formulated, and applied to compare and catalogue existing models. The interrelation of stress- and strain-controlled tests is discussed, and some new methods for obtaining or testing empirical models are indicated. Special attention is paid to the question of consistency of the model as regards linear superposition and re-ordering of blocks of cycles. /Author/TRRL/

Media Info

  • Features: Figures; References;
  • Pagination: p. 357-368
  • Serial:
    • GEOTECHNIQUE
    • Volume: 27
    • Issue Number: 3
    • Publisher: Thomas Telford Limited
    • ISSN: 0016-8505

Subject/Index Terms

Filing Info

  • Accession Number: 00168121
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: ITRD, TRIS
  • Created Date: Jun 28 1978 12:00AM