PROPERTIES OF PILE CUSHIONING MATERIALS

IN PILE DRIVING, IT IS USUALLY NECESSARY TO INCLUDE CUSHIONING MATERIAL BETWEEN THE STRIKING RAM AND THE HELMET AND, IN THE CASE OF CONCRETE PILES, BETWEEN THE HELMET AND HEAD OF THE PILE. THESE CUSHIONS ARE USED TO REDUCE THE LEVEL OF IMPACT FORCES DEVELOPED BY THE DRIVING HAMMER, TO PREVENT EXCESSIVE STRESSES IN THE DRIVING HAMMER, AND TO ELIMINATE SPALLING OF THE CONCRETE AT THE END OF THE PILE. THE MECHANICAL PROPERTIES OF VARIOUS CUSHIONS ARE INVESTIGATED HEREIN. LABORATORY INVESTIGATIONS WERE MADE TO DETERMINE THE DYNAMIC PROPERTIES OF THE CUSHIONS TESTED. THE RESULTS ARE TABULATED FOR SEVERAL CUSHION TYPES AND ARE CHECKED BY MEANS OF A MATHEMATICAL SOLUTION./ASCE/

• Supplemental Notes:
  • Vol 95, No ST 7, PROC PAPER 6663, PP 1431-1441, 10 FIG, 1
• Authors:
  • Edwards, T C
  • Lowery, L L
  • Hirsch, T J
• Publication Date: 1969-7

Media Info

• Serial:
  • Journal of the Structural Division
  • Publisher: American Society of Civil Engineers

Subject/Index Terms

• TRT Terms: Concrete; Cushioning materials; Dynamics; Materials; Mathematical analysis; Mechanical properties; Pile driving; Pile foundations; Spalling; Support piles; Wave equations
• Old TRIS Terms: Concrete piles; Cushioning; Wave equation formula
• Subject Areas: Bridges and other structures; Highways; Materials;

Filing Info

• Accession Number: 00209060
• Record Type: Publication
• Files: TRIS
• Created Date: Sep 22 1994 12:00AM