Hartz
Mountain Industries, Inc., developer, builder and pile driver, is building this beautiful
16-story twin tower complex that includes a 5-story parking garage.
In March of 1990 Hartz called us in, explaining they had a monumental problem
at one of their sites. Straight pipe was specified to carry a 60-ton design load, however,
after several pipe test piles were driven, it was obvious they would have to go all the
way to rock, which a soil boring showed to be at 198-ft.
Hartz’s engineers asked, "Would you please review soil data to see
if your uniformly-tapered Monotube would perform within a reasonable depth?"
Upon analysis of the data we felt our Monotube would develop at least the
60-ton design load at a maximum of 65 feet, and agreed to donate them enough test piles to
prove our belief. |
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Several Monotubes were driven around the large site and the results
were even better than anticipated.
The design load was increased from 60 tons on the pipe to 80 tons on the 1
2" Monotubes thus enabling a reduc-tion in the number of piles required by over 400.
The average length Monotube pile in the completed project was 56-ft., thus the individual
pile length driven was reduced by over 70%!
Hartz Mountain Industries, in the period May - July 1990, ordered and
installed 1171 - 7-gauge, 12-in diameter Monotube piles realizing a multi-million dollar
savings that made the project economically feasible.
We like to say they’ve taken advantage of Monotube’s "solid
economic" benefits. |
