A turf underlayment layer for supporting an artificial turf assembly includes a plurality of panels assembled together, each panel being made from a plurality of polyolefin beads bonded together, each panel further including a core, a top side having a plurality of projections, and a bottom side hav
A turf underlayment layer for supporting an artificial turf assembly includes a plurality of panels assembled together, each panel being made from a plurality of polyolefin beads bonded together, each panel further including a core, a top side having a plurality of projections, and a bottom side having a plurality of projections, the top projections forming top side water drainage channels and the bottom projections forming bottom side water drainage channels, the panels having edges, with the abutment of the edges of adjacent panels defining a water flow connector slot at the intersection of abutting panels, thereby providing a path for the flow of water from the bottom side water drainage channels of one panel to the bottom side water drainage channels of an abutting panel.
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1. A turf underlayment layer for supporting an artificial turf assembly, the turf underlayment layer comprising a plurality of panels assembled together, each panel being made from a plurality of polyolefin beads, the plurality of polyolefin beads bonded together by at least one of pressure and heat
1. A turf underlayment layer for supporting an artificial turf assembly, the turf underlayment layer comprising a plurality of panels assembled together, each panel being made from a plurality of polyolefin beads, the plurality of polyolefin beads bonded together by at least one of pressure and heat to produce a substantially water-impervious surface, each panel further including a core, a top side having a plurality of projections, and a bottom side having a plurality of projections, the top projections forming top side water drainage channels and the bottom projections forming bottom side water drainage channels, the panels having edges, with the edges of one panel abutting the edges of adjacent panels, with the abutment of the edges of adjacent panels defining a water flow connector slot at the intersection of abutting panels, the water flow connector slot being on the bottom side of the abutting panels and in fluid communication with the bottom side water drainage channels of each of the two abutting panels, thereby providing a path for the flow of water from the bottom side water drainage channels of one panel to the bottom side water drainage channels of an abutting panel. 2. The turf underlayment layer of claim 1 in which the panels have top side flaps and bottom side flaps along the edges, the top side flaps and bottom side flaps being interlocked with top side flaps and bottom side flaps of abutting panels in an overlapping manner. 3. The turf underlayment layer of claim 1 in which drain holes are positioned within the flaps, thereby enabling water to flow from the top side to the bottom side of the panels. 4. The turf underlayment layer of claim 1 which the water flow connector slot is in fluid communication with more than one bottom side water drainage channel for each panel of two abutting panels. 5. The turf underlayment layer of claim 1 in which, when two of the turf underlayment panels are assembled together in an abutting relationship, the water flow connector slot defined by the abutting edges is substantially parallel to the abutting edges of the panels. 6. The turf underlayment layer of claim 1 in which abutting relationship, the bottom side water drainage channels of each of two abutting panels are oriented to intersect the edges of the panel at an angle substantially transverse to the edges of the panel, and the water flow connector slot is substantially parallel to the edges of the panels. 7. The turf underlayment layer of claim 1 in which a plurality of drain holes extends through the foam core and connects the top side water drainage channels to the bottom side water drainage channels for fluid communication, the plurality of drain holes being dispersed over the panel surface, the top projections and bottom projections terminating in generally flat support surfaces and being spaced apart and sized such that the top side water drainage channels intersect with the bottom side water drainage channels at the drain holes, with the flat support surfaces of the top projections having smaller support surface areas than the flat support surfaces of the bottom projections. 8. The turf underlayment layer of claim 7 in which the support surfaces of the top projections are truncated cones having a friction enhancing surface configured as one of bumps, raised nibs, ribs, and dots. 9. The turf underlayment layer of claim 1 in which a plurality of drain holes connects the top side water drainage channels to the bottom side water drainage channels for fluid communication, the plurality of drain holes being dispersed over the panel surface, the top projections and bottom projections terminating in generally flat support surfaces, and being spaced apart and sized such that the top side water drainage channels intersect with the bottom side water drainage channels at the drain holes, with the flat support surfaces of the top projections having smaller support surface areas than the flat support surfaces of the bottom projections. 10. The turf underlayment layer of claim 1 in which the bottom water drainage channels of abutting panels are offset from each other, along the length of the water flow connector slot, at the panel edges. 11. The turf underlayment layer of claim 1 in which the panels include a plurality of drain holes that provide fluid communication between the top side water drainage channels and the bottom side water drainage channels. 12. The turf underlayment layer of claim 11 in which the panel edges include overlapping flanges having at least one of the plurality of drain holes in fluid communication with the water flow connector slot. 13. A turf underlayment layer for supporting an artificial turf assembly, the turf underlayment layer comprising a plurality of panels, each panel being made from a plurality of polyolefin beads, the plurality of polyolefin beads bonded together by at least one of pressure and heat to produce a substantially water-impervious surface, each panel further including a core, a top side having a plurality of projections, and a bottom side having a plurality of projections, the top projections forming top side water drainage channels and the bottom projections forming bottom side water drainage channels, the panels having edges, with the edges of one panel abutting the edges of adjacent panels, with the abutment of the edges of adjacent panels defining a water flow connector slot at the intersection of abutting panels, the water flow connector slot being on the bottom side of the abutting panels and in fluid communication with the bottom side water drainage channels of each of the two abutting panels, thereby providing a path for the flow of water from the bottom side water drainage channels of one panel to the bottom side water drainage channels of an abutting panel, with the water flow connector slot defined by the abutting edges being substantially parallel to the abutting edges, and the bottom water drainage channels of abutting panels being offset from each other, along the length of the water flow connector slot, at the panel edges, and wherein the bottom side water drainage channels of each of the two abutting panels are oriented to intersect the edges of the panel at an angle substantially transverse to the edges of the panel. 14. The turf underlayment layer of claim 13 in which the panels have top side flaps and bottom side flaps along the edges, the top side flaps and bottom side flaps being interlocked with top side flaps and bottom side flaps of abutting panels in an overlapping manner. 15. The turf underlayment layer of claim 14 in which drain holes are positioned within the flaps, thereby enabling water to flow from the top side to the bottom side of the panels. 16. The turf underlayment layer of claim 13 in which the water flow connector slot is in fluid communication with more than one bottom side water drainage channel for each panel of two abutting panels. 17. The turf underlayment layer of claim 13 in which a plurality of drain holes extend through the foam core and connect the top side water drainage channels to the bottom side water drainage channels for fluid communication, the plurality of drain holes being dispersed over the panel surface, the top projections and bottom projections terminating in generally flat support surfaces and being spaced apart and sized such that the top side water drainage channels intersect with the bottom side water drainage channels at the drain holes, with the flat support surfaces of the top projections having smaller support surface areas than the flat support surfaces of the bottom projections. 18. The turf underlayment layer of claim 17 in which the support surfaces of the top projections are truncated cones having a friction enhancing surface configured as one of bumps, raised nibs, ribs, and dots.
Defferrari Francisco L. (1062 Buenos Aires ARX), Component elements of protecting structures against erosion and process for assembling and placing the protection struct.
Ianniello, Peter J.; Capra, Giovanni; Zhao, Aigen, Void-maintaining synthetic drainable base courses and methods for extending the useful life of paved structures.
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