| CPC E02D 29/0225 (2013.01) [E02D 29/025 (2013.01)] | 8 Claims |
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1. A method of forming concrete on steel rebars for a retaining wall, comprising:
Providing a plurality of steel rebars covered with concrete elements molded in a series of undulating shapes within a grouted fill to form a gravity mass retaining structure behind a concrete wall face; wherein concrete nodes of the concrete elements are molded around all or part of a respective rebar to make modified rebars; wherein the concrete cures until reaching a minimum compressive strength of 2000 psi prior to being used for the purpose of structurally tying the grouted fill; wherein each of the rebars used to attach the g routed mass to the concrete wall face contain a non-modified portion free of concrete nodes; wherein the undulating shapes of the concrete of each modified rebar has a minimum section of 1.5 inches over the steel rebar and a maximum section of at least 1.5 times the minimum section and the slope of the undulating shapes between the minimum and maximum sections are sloped at between 20 and 45 degrees measured from the longitudinal axis of the rebar; and
Attaching non-modified portions of the respective rebars within the wall face of the retaining structure to create a gravity retaining wall within an area between a back cut in the ground to be supported by the retaining structure and the wall face using cohesive soil fill and large debris fill; wherein the large debris fill is concrete rubble from demolition projects or boulder and cobble size rocks; wherein the large debris fill is made of large debris fill elements which leaves large void spaces between the large debris fill elements; wherein the large void spaces are initially filled with gravel size rocks to make a mechanical connection between the concrete nodes of each rebar and the large debris fill elements; wherein the non-modified portions of the respective rebars are attached within the wall face and then bent towards the grouted fill behind and supported by the wall face; and
Placing grout pipes simultaneously with the rebars and the grouted fill; wherein the grout pipes are placed at designed locations to communicate with the large void spaces; grouting material is then injected through each of the grout pipes into the large void spaces to lock the cohesive soil fill and large debris fill with the concrete nodes and rebars to form a solid reinforced mass that support horizontal and vertical loads from the material behind the gravity retaining wall.
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