Helical Piles

CASE HISTORY #19980107-B
February 25, 1995
Project Washington School District Commercial Underpin & NC
Engineer Caruso-Turley-Scott Target General, Inc
Underpinning Contractor Azizona Helical-Piers Co. Phoenix, AZ

Job Description: This is a 4-building, 64 helical pier underpin and new construction project, located at the Washington School District; Cactus Wren Elementary School in Phoenix, Arizona. All structures exhibited signs of distress with a pronounced settlement causing horizontal cracking on many of the walls. The helical pier was used in new construction to avoid future problems in buildings being constructed.

Repair: A total of 64 helical piers were installed with 40 of these to stabilize existing outside load bearing walls by underpinning. Twenty-four piers were new construction with rebar load caps before the footings were poured.

AHPC used underpinning & new construction at Cactus Wren.

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Front Entrance To Cactus Wren Elementary School
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South side of Building B as AHPC crews readied to start.
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Excavator with power head

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Building C, Underpinning
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New Pier before footing pour
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Building a, New Construction

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Rotating Pier into the ground