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  United States  10017-2398
• Discussers:
  • Boggs, E W
  • Bentley Jr, A L
  • Greaves, M J
• Publication Date: 1966-7

Media Info

• Pagination: p. 90-93
• Serial:
  • Journal of Soil Mechanics & Foundations Div
  • Volume: 92
  • Issue Number: SM4

Subject/Index Terms

• TRT Terms: Data collection; Dissipation; Foundations; Hammers; Performance; Pile caps; Pile driving
• Old TRIS Terms: Energy loss /pile driving/; Foundation investigations
• Subject Areas: Energy; Geotechnology; Highways;

Filing Info

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