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A compliant insert for flexibly supporting a synthetic floor tile above a ground surface that includes one or more elongate bodies, with each elongate body having a longitudinal axis oriented parallel to a top surface of the floor tile, a top face having an attachment interface for coupling to a til

A compliant insert for flexibly supporting a synthetic floor tile above a ground surface that includes one or more elongate bodies, with each elongate body having a longitudinal axis oriented parallel to a top surface of the floor tile, a top face having an attachment interface for coupling to a tile support structure extending downward from an underside of the floor tile, and a bottom face of having at least one contact flat for contacting the ground surface and at least one upwardly-directed recess for allowing liquids to flow underneath the insert. Each of the elongate bodies also has a thickness and stiffness sufficient, in an unloaded state, to elevate the support structure a distance above the ground surface.

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1. A compliant insert for flexibly supporting a synthetic floor tile above a ground surface, the insert comprising: at least one elongate body having a longitudinal axis oriented parallel to a top surface of the floor tile;a top face of the elongate body having an attachment interface for coupling t

1. A compliant insert for flexibly supporting a synthetic floor tile above a ground surface, the insert comprising: at least one elongate body having a longitudinal axis oriented parallel to a top surface of the floor tile;a top face of the elongate body having an attachment interface for coupling to a tile support structure extending downward from an underside of the floor tile; anda bottom face of the elongate body comprising: at least one contact flat for contacting the ground surface; andat least one upwardly-directed recess for allowing liquids to flow underneath the insert from a first lateral side of the elongate body to a second lateral side of the elongate body,wherein the elongate body has a thickness and stiffness sufficient, in an unloaded state, to elevate the support structure a distance above the ground surface. 2. The compliant insert of claim 1, further comprising a plurality of upwardly-directed recesses sub-dividing the at least one contact flat into a plurality of contact flats. 3. The compliant insert of claim 2, further comprising a plurality of drainage channels formed into the top face of the elongate body and sub-dividing the attachment interface into a plurality of attachment interfaces. 4. The compliant insert of claim 3, wherein the plurality of contact flats are axially aligned with the plurality of attachment interfaces and provide a plurality of support columns between the ground surface and the floor tile. 5. The compliant insert of claim 1, wherein the attachment interface comprises a groove of pre-determined width that forms a rib/groove interconnection with a rib of the tile support structure having a corresponding width. 6. The compliant insert of claim 5, wherein the groove and each rib/groove interconnection substantially circumscribes the upper and side faces of the elongate body. 7. The compliant insert of claim 1, wherein the attachment interface further comprises a series of holes formed through the elongate body and adapted to receive a support post of the tile support structure. 8. The compliant insert of claim 1, wherein the at least one elongate body further comprises a plurality of elongate bodies joined together at an angle to form a shaped elongate insert supporting the floor tile in a plane. 9. A compliant insert for flexibly supporting a synthetic floor tile above a ground surface, the insert comprising: at least one compressible elongate body having a longitudinal axis oriented parallel to a top surface of the floor tile;a bottom face of the elongate body having at least one contact flat for contacting the ground surface; anda top face of the elongate body having an attachment interface for coupling the insert to a tile support structure extending downwardly from an underside of the floor tile, wherein the compressible elongate member has a thickness and stiffness sufficient, in an unloaded state, to elevate the bottom of the support structure a distance above the ground surface and to compress to allow the bottom of the support structure to come into contact with the ground in a loaded state; andat least one drainage recess for channeling liquids from a first lateral side of the elongate body to a second lateral side of the elongate body. 10. The compliant insert of claim 9, further comprising a plurality of drainage channels sub-dividing the attachment interface into a plurality of attachment interfaces. 11. The compliant insert of claim 10, wherein each of the plurality of drainage channels has a curvilinear shape with a radius of curvature ranging between 0.1 inch and 0.5 inch. 12. The compliant insert of claim 9, wherein the at least one drainage recess extends from a top face to a side face of the elongate body. 13. A compliant insert for flexibly supporting a synthetic floor tile above a ground surface, the insert comprising: at least one elongate body having a longitudinal axis oriented parallel to a top surface of the floor tile, and with a thickness and stiffness sufficient, in an unloaded state, to elevate a bottom of the floor tile a distance above the ground surface and compress to allow the bottom of the floor tile to come into contact with the ground in a loaded state;a bottom face of the elongate body having at least one contact flat for contacting the ground surface; anda top face of the elongate body having at least one attachment groove formed therein for receiving a support rib extending downwardly from an underside of the floor tile to establish a rib/groove interconnection coupling the insert to the floor tile, wherein a portion of said attachment groove is substantially parallel to a top surface of the floor tile and further comprising a plurality of attachment grooves transverse to the longitudinal axis for receiving a grid of support ribs therein to establish a plurality of rib/groove interconnections. 14. A modular tile system forming a partially-compliant floor covering over a ground surface, the tile system comprising: a modular floor tile, comprising: a substantially planar body having a top surface; anda tile support structure extending downwardly from an underside of the planar body; andat least one compliant insert, comprising: at least one compressible elongate body having a longitudinal axis oriented parallel to the top surface of the floor tile having a thickness and stiffness sufficient, in an unloaded state, to elevate a bottom surface of the tile support structure a distance above the ground surface and compress sufficient to permit the bottom surface of the tile support structure to come in contact with the ground surface when in a loaded state;a bottom face of the elongate body having at least one contact flat for contacting the ground surface;a top face of the elongate body having at least one attachment interface for coupling the insert to the tile support structure; andat least one drainage channel transverse to the longitudinal axis and substantially parallel to the top surface of the tile for channeling liquids away from the floor tile. 15. The tile system of claim 14, wherein the at least one elongate body further comprises a plurality of elongate bodies joined together at an angle to form a shaped elongate insert supporting the floor tile in a plane. 16. The tile system of claim 14, wherein the at least one drainage channel further comprises a plurality of top and side drainage portions sub-dividing the at least one elongate body into a plurality of support columns between the ground surface and the modular floor tile. 17. A modular floor tile for forming a partially-compliant floor covering over a ground surface, the floor tile comprising: a substantially planar body having a top surface;a tile support structure extending downwardly from an underside of the planar body, said tile support structure having a bottom surface configured to rest on the ground surface; andat least one compressible elongate body having a longitudinal axis oriented parallel to the top surface of the floor tile having a thickness and stiffness sufficient, in an unloaded state, to elevate the bottom surface of the tile support structure a distance above the ground surface and compress to allow the bottom surface of the tile support structure to come into contact with the ground in a loaded state, the elongate body comprising: a bottom face having at least one contact flat for contacting the ground surface;a top face having at least one attachment interface for coupling the elongate body to the tile support structure; andat least one drainage channel disposed atop the elongate body transverse to the longitudinal axis and substantially parallel to a top surface of the floor tile for channeling liquids away from the floor tile. 18. The modular floor tile of claim 17, wherein the attachment interface comprises a groove of pre-determined width that forms a rib/groove interconnection with a rib of the tile support structure having a corresponding width. 19. The modular floor tile of claim 18, wherein each rib/groove interconnection substantially circumscribes the upper and side faces of the elongate body. 20. The modular floor tile of claim 17, wherein the attachment interface further comprises a series of holes formed through the elongate body and adapted to receive a support post of the tile support structure. 21. The modular floor tile of claim 20, wherein the holes are formed in the drainage recess of the elongate body. 22. The modular floor tile of claim 17, further comprising at least one upwardly directed drainage recess disposed in the bottom of the elongate body for allowing liquids to flow underneath the insert from a first lateral side of the elongate body to a second lateral side of the elongate body, wherein the upwardly directed drainage recess is disposed beneath the drainage channel.