THEORETICAL STUDY OF ELASTO PLASTIC EQUILIBRIUM AROUND PRESSUREMETER IN SANDS . PRESSUREMETERS. PROCEEDINGS OF THE THIRD INTERNATIONAL SYMPOSIUM, ORGANISED BY THE BRITISH GEOTECHNICAL SOCIETY, OXFORD UNIVERSITY, APRIL 2-6, 1990

This paper analyses the equilibrium around the pressuremeter. It is divided in two parts: (1) In the first part, we describe the soil behaviour law. The soil is assumed to be elasto-plastic with a non associated plastic flow. The soil is non cohesive, and shows dilatancy in plasticity. We take into account the vertical stress Sigma z. We show that two different plastic zones develop around the pressuremeter. The first one is linked to the circumferential stress Sigma theta and the radial stress Sigma r. The second one is linked to the vertical stress Sigma z and to the circumferential stress Sigma theta. The elastic equilibrium beyond the plastic area is used for the analysis. We derive the expression of the two plastic radii, the relation between stress and strain in each zone and the expression of displacements. (2) In the second part, we compute with a finite element program the equilibrium around the pressuremeter, the program uses the behaviour law of MONNET. The comparison between theoretical and numerical results for the stress distribution is shown. (Author/TRRL)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0727715569
• Corporate Authors:

  Thomas Telford Limited

  London,   United Kingdom 
• Authors:
  • Monnet, J
• Publication Date: 1990

Media Info

• Features: References;
• Pagination: p. 137-148
• Serial:
  • Publication of: Telford (Thomas) Limited
  • Publisher: Thomas Telford Limited

Subject/Index Terms

• TRT Terms: Computer programs; Conferences; Deformation curve; Elastoplasticity; Finite element method; Pressure gages; Sand; Soil mechanics; Soil tests
• Uncontrolled Terms: Elastic plastic analysis
• Old TRIS Terms: Soil behavior; Stress distribution (Soils)
• ITRD Terms: 8525: Conference; 5912: Elasticity; 9020: Evaluation (assessment); 6490: Finite element method; 6473: Mathematical model; 5483: Movement; 5922: Plasticity; 6128: Pressiometer; 5755: Soil mechanics; 5575: Stress (in material)
• Subject Areas: Geotechnology; Highways;

Filing Info

• Accession Number: 00619871
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• ISBN: 0-7277-1556-9
• Files: ITRD, TRIS
• Created Date: Mar 31 1992 12:00AM