DEVELOPMENTS IN CONE PENETRATION TESTING - THE FRICTION PIEZOCONE

One of the principle developments in site investigation techniques in the UK has been the introduction of the static cone penetration test (cpt). During the last decade, the test has become increasingly accepted as a means for recovering reliable and continuous in-situ soils data. The speed and versatility of the method have become well known, resulting in some 3000 tests being performed in the UK during 1981. The simple cone penetrometer has now been largely superseded by the friction cone, which incorporates a sleeve just above the conical section to measure local friction as well as tip resistance. More recently, piezocones, incorporating pore water pressure measuring devices, have been developed. The results of piezocone tests allow more detailed assessments of in-situ soil conditions to be made. In this article, the latest developments of the technique - a penetrometer for simultaneously measuring cone resistance, sleeve friction and pore water pressure--are discussed. (Author/TRRL)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00174653
• Corporate Authors:

  Foundation Publications Limited

  7 Ongar Road
  Brentwood CM15 9AU, Essex,   England 
• Authors:
  • Swain, C W
• Publication Date: 1984-3

Media Info

• Features: Figures; References;
• Pagination: p. 26-27
• Serial:
  • GROUND ENGINEERING
  • Volume: 17
  • Issue Number: 2
  • Publisher: EMAP CONSTRUCT LIMITED
  • ISSN: 0017-4653

Subject/Index Terms

• TRT Terms: Cone penetrometers; Friction; Measuring instruments; Permeameters; Pore water pressures; Sleeves (Electricity); Soils; Static penetration test; Static tests; Strength of materials
• Uncontrolled Terms: Site investigation
• Old TRIS Terms: Sleeves
• ITRD Terms: 6155: Apparatus (measuring); 6178: Cone penetrometer; 5452: Friction; 5762: Pore water pressure; 5722: Site investigation; 4156: Soil; 6294: Static penetration test; 5544: Strength (mater)
• Subject Areas: Geotechnology; Highways; I41: General Soil Surveys;

Filing Info

• Accession Number: 00387235
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD, TRIS
• Created Date: Aug 30 1984 12:00AM