FIELD EVALUATION OF DIESEL HAMMER PERFORMANCE. PROCEEDINGS OF THE ELEVENTH INTERNATIONAL CONFERENCE ON SOIL MECHANICS AND FOUNDATION ENGINEERING, SAN FRANCISCO, 12-16 AUGUST 1985

Six single-acting open-end diesel hammers were used to drive 61-cm octagonal prestressed concrete piles into alluvial deposits during the design and construction of the West Seattle freeway bridge. These six hammers had almost identical characteristics specified by the manufacturers. Dynamic test results revealed that the efficiency of these hammers ranged from 57 to as low as 17 percent. The large variations in the hammer efficiency impacted the pile driving resistances. For piles driven into similar soils, the differences in driving resistances were as much as 300 to 500 percent. Dynamic testing should be performed to evaluate hammer efficiency, especially when unusual changes are observed in driving resistances and/or hammer performance. Diesel hammer performance cannot be evaluated by observations only. For the covering abstract of the conference see IRRD 287689. (Author/TRRL)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/9061915643
• Corporate Authors:

  AA Balkema

  P.O. Box 1675
  Rotterdam,   Netherlands  BR-3000
• Authors:
  • Wu, M J
  • Gurtowski, T M
  • Yamane, G
• Publication Date: 1985

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 1507-10
• Serial:
  • Publication of: Balkema (AA)
  • Publisher: AA Balkema

Subject/Index Terms

• TRT Terms: Alluvium; Conferences; Dynamic tests; Economic efficiency; Hammers; Pile driving; Prestressed concrete; Support piles
• Uncontrolled Terms: Efficiency
• Old TRIS Terms: Prestressed concrete piles
• Subject Areas: Economics; Highways; Vehicles and Equipment;

Filing Info

• Accession Number: 00466400
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• ISBN: 90 6191 564 3
• Files: ITRD, TRIS
• Created Date: Mar 31 1988 12:00AM