AXIAL CAPACITY OF VIBRATORY-DRIVEN PILES VERSUS IMPACT-DRIVEN PILES

In recent years, vibratory pile drivers have gained popularity with contractors due to the increased productivity that can be realized with their use. The driving time can be reduced by a factor of 10 to 20 over that of an impact-driven pile. This gain in productivity is very attractive and profitable, but questions exist as to whether vibratory driving has an effect on a pile's axial capacity when compared with an impact-driven pile. This paper presents and discusses the results of a study of three pile testing programs that make direct comparison between vibratory- and impact-driven piles. One of these testing programs has never before been reported in the literature. From the study of these testing programs, it was found that the vibratory-driven piles had a significant reduction in axial capacity when compared with the impact-driven piles. This reduction in capacity of the vibratory-driven piles was due to a lower tip resistance.

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. 128-135
  • Monograph Title: Modern geotechnical methods: instrumentation and vibratory hammers
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00603615
  • Record Type: Publication
  • ISBN: 030905057X
  • Files: TRIS, TRB, ATRI
  • Created Date: Feb 28 1991 12:00AM