COMPUTATIONAL MODEL FOR SATURATED SAND SUBJECTED TO CYCLIC LOADING

The paper presents an analytical model for calculating permanent strains and accumulated pore water pressure due to cyclic loading of saturated sand. The proposed formulation is based on concepts analogous to viscoelasticity to predict strains and pore pressures at the end of one or more cycles of loading without an explicit description of the hysteretic sand behaviour within each cycle. Attention is focused on developing general expressions which also partly account for soil anisotropy and the effect of principal stress rotation. The model parameters are derived empirically from the results of drained or undrained static and cyclic triaxial and simple shear tests. The proposed constitutive equations are incremental, in terms of effective stresses, so that they may be applied to predict permanent strains and accumulated pore water pressure under various drainage and boundary conditions. To illustrate the merits of the proposed formulation, comparisons are presented of computed and recorded response in drained and undrained cyclic triaxial tests, as well as in constant volume cyclic torsional shear tests. The good agreement observed in the comparisons, suggests that the theoretical model, presented here, is a practical alternative to hysteretic stress-strain models for computing permanent strain and accumulated pore pressure.(a)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00380806
• Corporate Authors:

  ENGINEERING

  SUGAYAMA BUILDING 4F, KANDA AWAJICHO 2-23, CHIYODA-KU
  Tokyo 101,   Japan 

  ENGINEERING

  SUGAYAMA BUILDING 4F, KANDA AWAJICHO 2-23, CHIYODA-KU
  Tokyo 101,   Japan 
• Authors:
  • BOUCKOVALAS, G
  • Hoeg, K
• Publication Date: 1987-12

Language

• English

Media Info

• Pagination: p. 34-44
• Serial:
  • SOILS AND FOUNDATIONS
  • Volume: 27
  • Issue Number: 4
  • Publisher: JAPANESE GEOTECHNICAL SOCIETY
  • ISSN: 0038-0806

Subject/Index Terms

• TRT Terms: Calculation; Deformation; Mathematical analysis; Mathematical models; Percent saturation; Pore water pressures; Repeated loads; Sand
• Subject Areas: Geotechnology;

Filing Info

• Accession Number: 00487407
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Files: ITRD, TRIS
• Created Date: Sep 30 1989 12:00AM