EVALUATION OF CONE PRESSUREMETER TESTS IN SOFT COHESIVE SOILS . PRESSUREMETERS. PROCEEDINGS OF THE THIRD INTERNATIONAL SYMPOSIUM, ORGANISED BY THE BRITISH GEOTECHNICAL SOCIETY, OXFORD UNIVERSITY, APRIL 2-6, 1990

A comparison is presented of data obtained using three types of pressuremeters at three different clay sites in the Lower Mainland of British Columbia. The three pressiometers used in the study are: The Hughes self bored pressiometer; the Fulgro Cone penetrometer and the Seismic Cone pressiometer. The three sites tested consisted of clayey silt, organic clayey silt and glacio-marine silty clay respectively. The factors affecting the results are considered in relation to instrument and soil characteristics. The most important of these factors are: the effects of disturbance caused by insertion; the period of relaxation allowed after insertion prior to conducting the expansion of the probe; the test procedures used; and instrument characteristics, such as the inability of the pressiometer tests to model the expansion of an infinitely long cylindrical cavity. Methods for determining the undrained shear strength are evaluated. Finally, the rigidity index based on unload-reload cycles and vane shear strengths are compared to established modulus reduction curves. (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:
  • Campanella, R G
  • Howie, J A
  • Hers, I
  • Sully, J P
  • ROBERTSON, P K
• Publication Date: 1990

Media Info

• Features: References;
• Pagination: p. 125-135
• Serial:
  • Publication of: Telford (Thomas) Limited
  • Publisher: Thomas Telford Limited

Subject/Index Terms

• TRT Terms: Clay; Cohesive soils; Cones; Conferences; Evaluation; Pressure gages; Silty clays; Soft rock; Soil tests; Undrained shear strength
• ITRD Terms: 4177: Clay; 8525: Conference; 9020: Evaluation (assessment); 6128: Pressiometer; 5531: Shear; 5755: Soil mechanics; 5544: Strength (mater)
• Subject Areas: Geotechnology; Highways;

Filing Info

• Accession Number: 00619870
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• ISBN: 0-7277-1556-9
• Files: ITRD, TRIS
• Created Date: Mar 31 1992 12:00AM