New Foundation for Sinkhole-Damaged Garage Case Studies
Multi-Helix Piles Support New Garage Foundation
Discovering an opening due to a sinkhole in a garage meant to keep you
and your belongings safe and warm in the winter weather can be devastating.
Professionals who understand soil and foundation issues can ease some
of the stress by performing a thorough evaluation of your property to
assess if other areas are susceptible to sinkhole damage.
A sinkhole opened in the garage floor of a home in Barrington, IL, that
backs up to Cuba Marsh, which is affected by poor soil conditions. The
Structural Shop LTD investigated the initial damage. They contacted Ram
Jack Illinois to remove debris and take elevations and measurements for
an engineer to design a repair plan.
The Structural Shop LTD proposed installing helical piles for the garage
foundation and pouring a reinforced structural slab. Guide sleeves would
be used due to soft soils. Ram Jack was hired to install four (4) helical
piles with a multi-helix configuration on the existing foundation. Four
(4) additional multi-helix piles were to be installed with new construction
brackets to support a new slab.
All eight (8) piles were installed as planned to an average depth of 40
ft. with guide sleeves used for the full depth. After pile installation,
80 tons of CA-6 granular material was placed in lifts and compacted to
prepare the soil for the new reinforced slab with grade beams. While helical
piles can accept loads immediately, the newly poured slab required a week
to cure. The homeowner was pleased to be able to use the garage just in
time for the cold winter months.
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