THE IMPLICATIONS OF OBSERVED DEFORMATIONS DURING CONE PENETRATION. PENETRATION TESTING IN THE UK. PROCEEDINGS OF THE GEOTECHNOLOGY CONFERENCE ORGANIZED BY THE INSTITUTION OF CIVIL ENGINEERS AND HELD IN BIRMINGHAM ON 6-8 JULY 1988

A new method of placing lead shots in an accurately located radial plane of a homogeneous cylindrical sample of dry sand was developed for the measurement of deformations in dry 18/25 Leighton Buzzard sand during penetration of an electrical penetrometer. X-ray photography was used to record movements of the lead shot markers and the displacement data revealed three distinct zones of deformation around the penetrometer tip. The locations of these zones infer that there could be considerable uncertainty in the interpretation of pore pressure measurements in granular materials with the current piezocone designs. Alternative locations for the porous elements are suggested.(A) For the covering abstract of the conference see IRRD 828222.

  • Availability:
  • Corporate Authors:

    Thomas Telford Limited

    London,   United Kingdom 
  • Authors:
    • Chen, P K
    • BASSETT, R H
  • Publication Date: 1989

Language

  • English

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00604802
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • ISBN: 0-7277-1531-3
  • Files: ITRD, TRIS
  • Created Date: Feb 28 1991 12:00AM