Filament Nonwoven Geotextile Installation
Filament Nonwoven Geotextile Installation
1. With manual rolling install, high quality filament nonwoven geotextile surface needs to be level off, and appropriate deformation allowance.
2. The installation of filament nonwoven geotextile factory price or short fiber nonwoven geotextile usually adopts several methods of lap joint, suture and welding. The width of suture and welding is generally more than 0.1m, and the lap width is generally more than 0.2m. Geotextiles that may be exposed for a long time should be welded or sewn together.
3. Geotextile Suture: All stitches must be continuous (for example, point stitches are not allowed). Filament nonwoven geotextile for sale must overlap at least 150mm before overlap. The minimum stitch distance from the edge (the exposed edge of the material) should be at least 25mm.
The filament nonwoven geotextile factory price joints that have been sewn most include 1 line of cable locking chain stitch method. The thread used for suture shall be resin material with a minimum tension of more than 60N and shall have the same or greater resistance to chemical corrosion and ultraviolet radiation as a geotextile. Any “needle leakage” on the geotextile must be re-sewn where it is affected. Appropriate measures must be taken to prevent soil, particulate matter or foreign matter from entering the geotextile layer after installation. The lap joint of cloth can be divided into natural lap joint, seam joint or welding according to the topography and use the function.
4. In the construction, the HDPE geomembrane above the geotextile shall be overlapped naturally, and the HDPE geomembrane on the upper layer, the filament nonwoven geotextile for sale shall be seamed or welded by hot air. Hot air welding is the preferred connection method of filament geotextile, that is, the connection of two pieces of cloth with a hot air gun is instantly heated at high temperature, so that part of it reaches the melting state, and immediately use a certain external force to make it firmly bonded together. In wet (rain and snow) weather cannot be hot adhesion connection, geotextile should adopt another method a suture connection method, that is, special sewing machine for double suture connection, and the use of anti-chemical ultraviolet suture line. The minimum width at suture is 10cm, the minimum width at natural lap is 20cm, and the minimum width at hot air welding is 20cm.
5. For seam joints, the same quality as geotextile should be used, and the suture line should be made of materials with stronger resistance to chemical damage and ultraviolet irradiation.
6. Geomembrane shall be laid after the geotextile laying and approved by the on-site supervision engineer.
Basic Requirements for Filament Nonwoven Geotextile Laying
1. The joint shall intersect the slope line; where there is balance or potential stress with the foot of the slope, the horizontal joint distance shall be greater than 1.5m.
2. On the slope, anchor one end of filament nonwoven geotextile produced by the filament nonwoven geotextile manufacturers, and then lay down the roll material on the slope to ensure that the geotextile stays tight.
3. All filament nonwoven geotextile produced by the filament nonwoven geotextile manufacturers shall be pressed down with sandbags, which shall be used during the laying period and retained to the upper layer of materials.