BSP AND QMC COLLABORATE IN PILE TESTS

This article describes tests carried out jointly by BSP International Foundations, Claydon, Suffolk, and GMC (Queen Mary College, University of London). The tests were undertaken by BSP to determine (1) the driving efficiencies of particular BSP hammers of different types, and pile driveability, (2) the effects of the hammers in the piles themselves, and (3) the effects of different cushion materials on pile driveability; they were conducted with instruments developed by GMC for measuring strains and accelerations during driving and studying the performance of piles in service. Two types of pile were used: a precast concrete west's hardrive pile driven to a final length of 60 m and a steel h-pile driven to a final length of 68 m. Four hammers were chosen for comparison: a winch-operated drop hammer, a double-acting diesel hammer, a single-acting diesel hammer, and a hydraulic hammer. The piles were instrumented with strain gauges and accelerometers. Data were collected on the hammer parameters, i.e. impact velocity, cushion stiffness and hysteresis losses. Some of the results are presented and discussed. (TRRL)

  • Availability:
  • Corporate Authors:

    Foundation Publications Limited

    7 Ongar Road
    Brentwood CM15 9AU, Essex,   England 
  • Publication Date: 1984-9

Language

  • English

Media Info

  • Features: Photos; References;
  • Pagination: p. 41-45
  • Serial:
    • GROUND ENGINEERING
    • Volume: 17
    • Issue Number: 6
    • Publisher: EMAP CONSTRUCT LIMITED
    • ISSN: 0017-4653

Subject/Index Terms

Filing Info

  • Accession Number: 00392439
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: ITRD, TRIS
  • Created Date: Mar 29 1985 12:00AM