Model for large strain consolidation with compressible pore fluid

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Abstract

A numerical model, called CCPF1 (Consolidation with Compressible Pore Fluid 1), is presented for one-dimensional large strain consolidation of a saturated porous medium with compressible pore fluid. The algorithm includes all the capabilities of a previous large strain consolidation code, CS2, written for incompressible pore fluid. In addition, fluid density and fluid viscosity are functions of fluid pressure in CCPFl. Generalization of the numerical approach to accommodate these functions requires several modifications to the CS2 method, including phase relationships, intrinsic permeability, pore pressure, fluid potential, and mass flux. Inertial forces are neglected and isothermal conditions are assumed. The development of CCPF1 is first presented, followed by an example that illustrates the effects of pore fluid compressibility on the mechanics of consolidation of saturated porous media.

Original languageEnglish (US)
Pages (from-to)1167-1188
Number of pages22
JournalInternational Journal for Numerical and Analytical Methods in Geomechanics
Volume28
Issue number11
DOIs
StatePublished - Sep 1 2004

All Science Journal Classification (ASJC) codes

  • Computational Mechanics
  • Materials Science(all)
  • Geotechnical Engineering and Engineering Geology
  • Mechanics of Materials

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