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Foundation Repair - Woods Basement Systems Secures the Foundation to add a Second Story to a Mount Vernon, IL Hospital
Hollow round shaft helical piers with an 8"-10"-12" triple-helix lead section were selected to support design working loads up to 50 kips per pier. Two column locations required a pair of helical piles to support a service load of 100 kips. Four helical piers were installed at each of the remaining two column locations to
support a service load of 200 kips. The project engineer also specified two additional piers be installed near one of the new columns to provide support for contributory loads of a new wall construction. The piers were installed to achieve torque-correlated ultimate capacities of at least twice the design working loads (FOS ≥ 2). The installed piers were fitted with new construction caps and cast within the individual column footings.