1. The composite geotechnical drainage net is a new type of geosynthetic material made of random wire melted and laid. It has high pressure resistance, large opening density, and has the functions of all-round water collection and horizontal drainage.
2. After the composite geotechnical drainage net is combined with the non-woven geotextile, it can collect the rainwater that has penetrated the soil covering layer or the sewage discharged from the storage yard itself under the buried closed covering layer, and use its unique drainage function. According to the project Orderly discharge from the geomat interlayer is required without the formation of silt. Possible slippage problems due to water saturation of the soil cover are thus avoided.
3. The composite geotechnical drainage network can not only discharge water, but also discharge the biogas produced by fermentation in the soil (especially garbage and waste), which is especially suitable for use in landfills.
4. When the composite geotechnical drainage net is used in combination with HDPE, it can also protect the HDPE membrane from being punctured.
5. Specifications and performance of composite geotechnical drainage network. The composite geotechnical drainage net currently has a width of 100cm-200cm, a thickness of 6cm-20cm, and a compressive strength of 250-1000 kpa. And other specifications and performance products can be customized according to engineering requirements.
6. The geotextile fixing belt is a 50mm wide, 8mm thick wooden strip dipped in asphalt and nailed to the parapet (or retaining wall) with cement nails to fix the geotextile.
7. The water collected by the water guide block is discharged to the gutter or rainwater ditch through the drain hole. The drain hole is located at the lower part of the parapet wall (or retaining wall). The size of the drain hole is 120mm×60mm, and there are two drain holes. Spacing 1-2m.
