System and method for enhancing structural performance of deep foundation pile members

A method to enhance structural performance of a deep foundation reinforced concrete pile in a hole in a ground surface, the hole comprising an upper shaft cavity connected to a lower generally bell-shaped cavity, the method comprising:

• providing a cage assembly, the cage assembly comprising:
• a plurality of rebars coupled together by a plurality of fixtures, each rebar in the plurality of rebars comprising an upper handle section continuously connected to a neck section continuously connected to a lower bent section, each fixture comprising a sheet comprising a plurality of fingers extending from an outer edge of the sheet, each finger in the plurality of fingers connected to the sheet at a corner junction comprising a concave edge formed by the finger and outer edge of the sheet, each finger in the plurality of fingers comprising a plurality of retaining protrusions on the concave edge of each fixture, the plurality of retaining protrusions configured to contact one of the plurality of rebars secured therein, the plurality of fixtures oriented so the plurality of fingers of each fixture are aligned with the plurality of fingers in an adjacent fixture in the plurality of fixtures, each rebar in the plurality of rebars configured to be secured within the concave edges of the corner junctions of the plurality of fixtures;
• disposing the cage assembly into the hole in the ground surface so the upper handle sections of the plurality of rebars remain above the ground surface, the neck sections of the plurality of rebars extend within the upper shaft cavity of the hole, and the lower bent sections of the plurality of rebars extend within the lower bell-shaped cavity;
• rotating the upper handle sections of the plurality of rebars to permit the lower bent sections of the plurality of rebars to extend outward into space within the bell-shaped cavity of the hole;
• and
• disposing concrete into the upper shaft cavity and lower bell-shaped cavity of the hole.