Expandable support for reinforcing concrete foundation and reinforcing method of concrete foundation using the same

摘要

The present invention relates to an expandable support for a concrete foundation reinforcing pile which is simply mounted on an upper portion of a reinforcing pile to tightly support a lower portion of an existing concrete foundation to reliably transfer the weight of the concrete foundation to the reinforcing pile in reinforcing the concrete foundation with the reinforcing pile, and a concrete foundation reinforcing method using the same. The expandable support for a concrete foundation reinforcing pile is coupled to the upper end of a reinforcing pile inserted into the ground underneath an existing concrete foundation to reinforce the concrete foundation to support a lower portion of the concrete foundation. The expandable support comprises: a cap unit mounted on the upper end of the reinforcing pile; a support bar arranged on an upper portion of the cap unit, and provided with screw threads formed on the outer circumferential surface thereof; a fixing ring screwed to the support bar to be lifted and lowered; and a plurality of support wings radially arranged on an upper portion of the fixing ring, and coupled to be rotated to the outside to support the lower portion of the concrete foundation.