Geosynthetic composite for Filtration and drainage of fine-grained geomaterials and its Manufacture method

摘要

A geocomposite for use in a construction site GeotechnicalComprising: a geotextile Filter includes: a primary layer is a non-woven fabric that has an apparent Opening size (AOS) of at least about 0,180 mm and a thickness greater than about 1.0mm in a normal load of 2 kPa; a secondary Layer consisting of a woven fabric that is about 2% to 20% Open Area, and a year around between 0.074 mm and 0,841 mm; where such Non Woven Cloth is connected to one side of the fabric Woven by the Needle punched through which the Fibers of the Nonwoven Fabric are drilled through the fabricWoven to extend beyond the face of woven fabric, a GeoNet and connected to the other side of the woven fabric.