 
Port Authority of NY & NJ
Approved!
Tapertube piles on the jobsite
  at
  JFK airport
  
   The
    Port Authority of NY & NJ has approved the new Tapertube® Pile
      for use.  They have stated
      in a letter:
The
    Port Authority of NY & NJ has approved the new Tapertube® Pile
      for use.  They have stated
      in a letter:
  
  “We have reviewed the performance
    of the Tapertube piling driven for the JFK-LRS (light rail system) pile
    test program and the production and test piles driven for the British
    Airways
    project.  The piling performed exceptionally well during both pile
    driving and load testing and meets our requirements for tapered pile
    applications. 
  We will be including the Tapertube pile as an acceptable alternative on
  our future projects and will accept them for Tenant projects as well.”
Many engineers today are
  looking
  to drive piles harder in order to obtain higher loads. 
  Contractors
  who must drive piles harder want piles that can take higher driving
  stresses
  without failure, a pile that can take higher driving stress is cost
  efficient
  and can be installed faster without the fear of buckling under the
  hammer.
A driven pile is a tested pile.
If
  the pile reaches the required blow count and depth without failure you
  can be reasonably confident in its performance.  This is
  especially
  true with a tubular steel pile that has a closed end.  You can
  examine
  the inside of the pile for possible damage and assure yourself of the
  piles
  integrity.
The trend today with driving
  equipment
  is moving to hydraulic hammers.  These devices are, for the most
  part,
  much more efficient then steam, air or diesel hammers.  Hydraulic
  hammers are reported to be better than 90% efficient in delivering
  energy
  to the pile.  For this reason, the Tapertube pile is ideally
  suited
  to those hammers because the pile can be produced to take the required
  driving force.
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Pileline Publishing

