1-D STRAIN IN NORMALLY CONSOLIDATED COHESIONLESS SOILS

A stress-strain model for one-dimensional strain in normally consolidated cohesionless soils is compared to test results covering the stress range from 1 to 1,300 atmospheres. The model is callled the 1/epsilon versus sigma' sub nu sup rho model because the implied relationship between void ratio epsilon and vertical effective stress sigma' sub nu is nonlinear in the low-stress range. The relationship between 1/epsilon and sigma' sub nu sup rho is nonlinear at higher stresses where the effect of particle crushing becomes significant. The effects of initial void ratio, relative density, particle shape, particle size distribution, and particle material on one-dimensional strain behavior have been examined in the framework of the model. The model can accurately represent one-dimensional strain in rockfill-like materials as well as in sands and gravels. The data and equations presented provide a means of esimating shrinkage during placement of rockfills and estimating settlement of structures on rockfills where it is not practical to conduct one-dimensional strain or penetration tests. One-dimensional strain is a primary component of three -dimensional constitutive relations and the model can be used to define class 2 plastic hardening of cohesionless soils.

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. 1449-67
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00465605
  • Record Type: Publication
  • Report/Paper Numbers: ASCE Paper 22017
  • Files: TRIS
  • Created Date: Feb 29 1988 12:00AM