Patent ID: 6505996
Filing Date: 2003-01-14
Classification: E01F,E02B,E02D

Abstract:
A drainage system for draining fluids away from a roadway or other large structure, comprising:A) a unitary void-maintaining geocomposite comprising i) a geocomposite core element having a plurality of interconnected voids, said core element being triplanar and having an upper surface and a lower surface, ii) at least one fluid-transmissible geotextile layer attached adjacent said upper surface, and iii) at least one fluid-transmissible geotextile layer attached adjacent said lower surface of said geocomposite core element, wherein said layers and said core element are constructed and arranged so that said unitary void-maintaining geocomposite maintains voids of desired dimension such that fluid from said roadway or other large structure can move freely through said geocomposite, and wherein said geocomposite is sloped downwardly from said roadway or other large structure, and B) drain means comprising perforated piping adjacent said void-maintaining geocomposite and communicating therewith such that said fluid can move from said void-maintaining geocomposite to said perforated piping, wherein said perforated piping is sloped downwardly from said void-maintaining geocomposite, wherein said void-maintaining geocomposite is constructed and arranged to form a wrapping adjacent to and around the circumference of at least a portion of said perforated piping such that a portion of one of said upper or lower fluid-transmissable geotextile layers is removed along the length of the wrapping so that said geocomposite core element contacts said perforated piping and said removed portion of said one of said upper or lower fluid-transmissable geotextile layers comprises overlapping portions and is connected to the other fluid-transmissible geotextile layer.