CS2: A piecewise-linear model for large strain consolidation

Patrick J. Fox, James D. Berles

Research output: Contribution to journalArticlepeer-review

157 Scopus citations


This paper presents a piecewise-linear finite-difference model for one-dimensional large strain consolidation called CS2. CS2 is developed using a fixed Eulerian co-ordinate system and constitutive relationships which are defined by discrete data points. The model is dimensionless such that solutions are independent of the initial height of the compressible layer and the absolute magnitude of the hydraulic conductivity of the soil. The capability of CS2 is illustrated using four example problems involving small strain, large strain, self-weight, and non-linear constitutive relationships. In each case, the performance of the model is comparable to other available analytical and numerical solutions. Using CS2, correction factors are developed for the conventional Terzaghi theory which account for the effect of vertical strain on computed values of elapsed time and maximum excess pore pressure during consolidation.

Original languageEnglish (US)
Pages (from-to)453-475
Number of pages23
JournalInternational Journal for Numerical and Analytical Methods in Geomechanics
Issue number7
StatePublished - 1997

All Science Journal Classification (ASJC) codes

  • Computational Mechanics
  • General Materials Science
  • Geotechnical Engineering and Engineering Geology
  • Mechanics of Materials


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