EFFECTS OF TEST PROCEDURE ON CONSTANT RATE OF STRAIN PRESSUREMETER TESTS IN CLAY. PROCEEDINGS OF THE SIXTH INTERNATIONAL CONFERENCE ON NUMERICAL METHODS IN GEOMECHANICS, 11-15 APRIL 1988, INNSBRUCK, AUSTRIA. VOLUMES 1 - 3

The present study investigates the relative importance of consolidation and creep in strain-controlled pressuremeter tests. Laboratory simulations of the test have been carried out and the results compared with numerical predictions which model the influence of these time dependent phenomena. In the laboratory, specimens have been consolidated around a cylindrical cavity to simulate 'perfect' insertion of a self boring pressuremeter, and the cavity has then been expanded at differing rates of strain. A complementary numerical study using the cam clay model and including both consolidation and deviatoric creep has allowed the separate influences of these time dependent phenomena on the cavity expansion to be studied. Results from both investigations indicate that varying the rate of expansion influences the test results, and hence derived parameters. (TRRL)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/906191809X
• Corporate Authors:

  AA Balkema

  P.O. Box 1675
  Rotterdam,   Netherlands  BR-3000
• Authors:
  • PYRAH, I C
  • ANDERSON, W F
  • Pang, L S
• Publication Date: 1988

Media Info

• Features: References;
• Pagination: p. 647-652
• Serial:
  • Publication of: Balkema (AA)
  • Publisher: AA Balkema

Subject/Index Terms

• TRT Terms: Clay; Conferences; Consolidation; Creep; Deformation; Errors; Evaluation; Expansion; Instruments for measuring loads or pressure; Mathematical models; Pressiometric probes; Soil mechanics; Soils
• Uncontrolled Terms: Pressiometer; Soil consolidation
• ITRD Terms: 4177: Clay; 8525: Conference; 5791: Consolidation (soil); 4732: Creep (mater); 5595: Deformation; 6440: Error; 9020: Evaluation (assessment); 6720: Expansion; 6473: Mathematical model; 6128: Pressiometer; 5755: Soil mechanics
• Subject Areas: Geotechnology; Highways;

Filing Info

• Accession Number: 00492585
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• ISBN: 90-6191-809-X
• Files: ITRD, TRIS
• Created Date: Mar 31 1990 12:00AM