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How Should Non-woven Geotextile Be Laid?
Jul 01, 2017

How should non-woven geotextile be laid? The next geotextile for you to detail how to store, transport and deal with non-woven geotextile.

Non-woven geotextile rolls should be protected from damage before installation. Non-woven geotextile roll should be stacked in the flat without water, the heap height of not more than four volumes, and can see the volume of the identification of the film. Non-woven geotextile rolls must be covered with opaque material to prevent UV aging. In the storage process, to maintain the integrity of the label and the integrity of the information.

In the course of transport (including the site from the material storage to the work of the transport), non-woven geotextile roll must be damaged.

Physical damage to the non-woven geotextile roll must be repaired. A severely worn nonwoven geotextile can not be used. Any non-woven geotextile exposed to leakage of chemical reagents are not allowed to be used in this project.

Non-woven geotextile laying method: 1 with artificial roll; cloth to be flat, and appropriate to leave the deformation margin; 2 filament or short wire non-woven geotextile installation is usually lap, suture and welding several methods The The width of the stitching and welding is generally 0.1 m or more, and the lap width is generally 0.2 M or more. May be long-term exposed non-woven geotextile, should be welded or stitched; 3 non-woven geotextile suture: all the suture must be carried out continuously (for example, point seam is not allowed). Before the overlap, the nonwoven geotextile must overlap at least 150mm. The minimum stitch is at least 25 mm from the edge (the exposed edge of the material).

Geotextile as a product of isolation layer is the advantage of other materials can not be replaced, filament geotextile strong high, vertical and horizontal tear is also a great force, so that it is not good in the original conditions of the slope and soft ground Good application, the other works in the isolation layer is indispensable, but also play the role of protective layer, to avoid the project due to the destruction of garbage and gravel loss of geomembrane seepage function, but also blocked the solid particles with the liquid into Leachate drainage system and regulating pool. Filament geotextile composed of the isolation layer can also fill the uneven grass-roots, to maintain the structural integrity of the project, it is filament geotextile these excellent performance, is widely used in reservoirs, drains, landfills, Retaining walls and embankment in the isolation layer, reinforced layer, filter layer and protective layer.

Sewing of non-woven geotextile joints, including the first line and line lock chain seam method. The thread used for suturing should be a resin material with a minimum tension of more than 60N and have resistance to chemical corrosion and UV resistance comparable to or beyond the nonwoven geotextile. Any "missing needle" on a stitched nonwoven geotextile must be re-sewn in the affected area. Must take appropriate measures to avoid the installation of soil, particulate matter or foreign matter into the non-woven geotextile layer. Cloth lap according to the terrain and the use of functions can be divided into natural lap, sewing or welding.