of 25 to 30 feet. In locations that required compression and tension
resistance, a modified installation approach used a Series 118/7.5
pile with an oversized 220 mm conical grout shoe to create a friction
bond by continuously pumping grout through the center of
the pile to fill the annular space during installation. The exteriorgrouted
piles were still driven to terminate by achieving set on rock
but resisted the tensile loads with a center bar inserted into the
center of the friction pile. After installation, the ungrouted piles
were filled with neat cement grout and all piles were capped with
steel bearing plates to be tied into the foundations.
Now completed, the project stands as a success story for maintaining
historic appearances while embracing new development. It
also represents an example of the use of the driven DIP system at a
constrained and vibration-sensitive urban site. t
Photos courtesy of DuroTerra, LLC
PDCA STEEL MEMBER – STEEL PROJECT
After initial exploration of the
foundation options, the DIP system
was selected because of the ability
to work on the congested site, the
modular and self-contained nature
of the operation and low vibration
levels to allow work immediately
adjacent to the property lines.
The completed building is a success story for maintaining historic
appearances while embracing new development
PILE TESTING EQUIPMENT
SPX POWER TEAM
RENTALS • SALES • SERVICE
Loadcell
Digitial Readout Box
Test Pile
Hydraulic
Jack
Dial Gauges
• Hydraulic Jacks 0-2000 Tons
• Loadcells with Digital Readout Boxes - 0-2000 Tons
• Centerhole Jacks 0-1500 Tons
• Dial Indicators 0-14 inches
• Power Units - Electric, Gas or Manual
• Calibration Services up to 2000 Tons
W.B. Equipment Service Company, Inc.
Supplier of Hydraulic and Pneumatic Jacking Systems for Jacking and Pile Testing.
Toll free: 866-522-5467 • Fax: 201-438-7830 • Email: stephen.cireco@verizon.net • Web: www.wbequipment.com
94 | EDITION 5 2019 www.piledrivers.org
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