Settling of Unsupported Foundation Case Studies
Introduction: Sometimes a simple home project or repair can turn into something much
more complicated. Such was the case with a home in Joanna, South Carolina.
The homeowner was excavating the area around his home prior to building
an additional basement when he noticed that the rear, right corner of
his house was almost entirely unsupported. This could spell disaster if
The Situation: After several weeks, the homeowner excavated a large amount of soil on
one side of his home when he noticed that in just a few short weeks, the
wall adjacent to the excavation site had settled around 1⁄2 in.
A Ram Jack inspection revealed an unsupported foundation in the corresponding
area, a settling and failing wall, and numerous significant cracks in
the cinder block above the compromised region of the home. Intervention
was absolutely necessary to avoid further damage, prevent potential structural
collapse, and stabilize the structure.
Proposed Solution: Ram Jack proposed the installation of four (4) 2 7/8 in. helical piles
with standard brackets and 7 ft. of angle iron between them to stabilize
the exterior wall on the previously excavated side of the home. The helical
piles would be used to restore the integrity of the structure and provide
the needed support in the wall above the compromised area.
Outcome: Four piles were successfully installed to an average depth of 35 ft. for
complete recovery of the structure. In order to ensure the piles functioned
properly, each was installed at an individual angle that maximized contact
with the wall above and established adequate support below. Not only was
the structural integrity of the home restored, but the cracks in the damaged
wall were closed. The homeowner was completely satisfied with the job.
Download the full case study in pdf format