AN EFFECTIVE STRESS APPROACH TO UNDRAINED ANALYSIS. NUMERICAL MODELS IN GEOMECHANICS. NUMOG III. PROCEEDINGS OF THE 3RD INTERNATIONAL SYMPOSIUM HELD IN NIAGARA FALLS, CANADA, 8-11 MAY 1989

The purpose of this paper is to introduce a finite element formulation for fully undrained analysis in terms of effective stresses. The approach is based on the assumption that the pore pressure is related to the total stresses using henkel's pore pressure parameters. The formulation is generally valid for any type of elasto-plastic material models. An elasto-plastic model is used to analyze the deformation of the expansion of a long cylinder for which the analytical solution is available for comparison. Both elastic perfectly plastic and strain softening models are used in this analysis. A friction model using the Mohr Coulomb criterion is then used to analyze a strip footing to study the generation of pore pressure and the propagation of the failure zone beneath the footing. For the covering abstract of this conference see IRRD 824029.

Availability:
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Corporate Authors:
Elsevier Science Publishers

Crown House, Linton Road
Barking, Essex IG11 8JU, England
Authors:
- CHAN, D H
- MORGENSTERN, N R
Publication Date: 1989

Language

English

Media Info

Pagination: p. 740-50
Serial:
- Publication of: Elsevier Applied Science Publishers Limited
- Publisher: Elsevier Science Publishers

Subject/Index Terms

TRT Terms: Conferences; Deformation; Elasticity (Mechanics); Failure; Finite element method; Foundations; Friction; Mat foundations; Mathematical models; Plasticity; Pore water pressures; Saturated soils; Softening point; Stresses
Uncontrolled Terms: Undrained soils
Subject Areas: Data and Information Technology;

Filing Info

Accession Number: 00497977
Record Type: Publication
Source Agency: Transport and Road Research Laboratory (TRRL)
ISBN: 1-85166-425-4
Files: ITRD, TRIS
Created Date: Sep 30 1990 12:00AM