MICHIGAN STUDY OF PILE DRIVING HAMMERS

Boggs comments on Housels' treatment of tests evaluating the performance of diesel and conventional pile-driving hammers. A load cell placed between the cushion block and the top of the pile yielded measurements of the actual force applied by a pile hammer at the top of a pile. The term ENTHRU was applied to the sum of the product of each force increment multiplied by the simultaneous increase in penetration for a single hammer blow. ENTHRU is the net energy effective in driving the pile, and also accounts for energy losses in the pile-driving process. A discussion of ENTHRU is included, as is a summary of the optimum performance of various hammers under various conditions. Bentley discusses the mechanics of pile-driving and the acquisition of data in this regard. Greaves points out the value of such a documented foundation research project to engineers with diverse practices, and describes the use of a nondimensional impulse characteristic number.

  • Corporate Authors:

    American Society of Civil Engineers

    345 East 47th Street
    New York, NY  USA  10017-2398
  • Discussers:
    • Boggs, E W
    • Bentley Jr, A L
    • Greaves, M J
  • Publication Date: 1966-7

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00095888
  • Record Type: Publication
  • Report/Paper Numbers: Discussion
  • Files: TRIS
  • Created Date: Jun 10 1975 12:00AM