Helical Piles are often thought of as being fairly low capacity piles. The CHANCE Helical Pulldown Micropile has been load tested at over 300 kips. Some of the piles for this project were installed to carry 200 kips ultimate.
1.
NEW CONSTRUCTION
REMEDIAL REPAIR
HELICAL PULLDOWN®
MICROPILE
SITE PREPARATION
ATLAS RESISTANCE®
PIERS
TELECOM/SUBSTATION
UTILITY/SOLAR
RETAINING WALLS
EARTH RETENTION
HELICAL UNDERPINNING
PIPELINE STABILIZATION
SOIL SCREW®
HELICAL TIEBACK
HELICAL FOUNDATION SOLUTIONS
CERTIFIED INSTALLER
MASON GRADY FOUNDATIONS
GENERAL CONTRACTOR
GREENHUT CONSTRUCTION
STRUCTURAL ENGINEER
BERUBE LEONARD
GEOTECHNICALENGINEER
NOVA ENGINEERING
Hubbell Power Systems, Inc. is the
world’s leading helical pile/anchor
manufacturer. The CHANCE®
brand
offers a technically advanced,
cost effective solution for the Civil
Construction and Electric Utility and
Telecommunications markets.
PROJECT: The YMCA of Northwest Florida had plans to construct a new state of the art facility to replace
its existing facility in Pensacola, FL. The new 52,000 square foot building was to contain an indoor, accessible
aquatic center with two pools. Plans called for the building and pool foundations to be supported by auger
cast piles. The key to the project schedule would be installing the roof system as quickly as possible so that
the building would be dried in so that weather could no longer affect the production schedule. In order for
this to be accomplished the deep foundations for the pools would need to be installed after the roof was
complete. The general contractor, Greenhut Construction, also wanted to perform the pool excavations after
the roof was installed to decrease the de-watering period for the pool area, and so that the building would
not have to be constructed around the excavation. Greenhut estimated that this would save approximately six
(6) weeks of production time. To accomplish this, a high capacity deep foundation was needed that could be
installed indoors in a limited access area.
SOLUTION: The CHANCE Helical Pulldown Micropile (HPM) was the perfect fit for this scenario. HUBBELL/
CHANCE is the world's leading manufacturer of helical foundation systems. Backed by more than 100 years of
engineering experience, the HPM is a technologically advanced, cost effective, high capacity deep foundation system. The
HPM is a true composite pile that combines both skin friction and end bearing components to provide much higher
capacities than provided by standard helical piles. To view a load test database, please visit the Helical Pile Association
website at loadtest.helicalpileassociation.com/
continued
CASE HISTORY
View of the work area
Load Test results
View of the work area
