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:
“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