Do you have to have a mattress on the geotextile?
1, geotextile must be washed back to fill or sand protective layer and light compaction to prevent the subsequent construction of the destruction of geotextile, punctured and so on. But also a transition zone, to ease the upper load on the geotextile extrusion, tensile force and so on. 2, "Geotextile Construction Code QB / SNGSG-2004" and "Geosynthetics Application Technical Specifications GB / T-2017" backfill requirements: 1) timely backfill materials, backfill stone maximum drop of not more than 300mm, Heavy earth stones should not roll on the slope of the rolling; 2) fill the compaction should meet the design requirements, backfill 300mm loose layer, light compaction. 3, geotextile introduction: 1), geotextile by synthetic fiber through acupuncture or weaving made of permeable geosynthetics. Finished cloth for the cloth, the general width of 4-6 meters, the length of 50-100 meters. Geotextile is divided into a woven geotextile and non-woven geotextile. Advantages: geotextile with excellent filtration, drainage, isolation, reinforcement, anti-seepage, protection, with a light weight, high tensile strength, good permeability, high temperature, resistance to Freezing, anti-aging, corrosion-resistant advantages. 2), Disadvantages: in the rigid base waterproof requirements are not applicable (tensile rate does not meet the requirements), easy to break, scratches and so on.
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