What are the functions of the 3 D composite drainage network
3 d composite drainage network is made of double-sided bonded geotextile of 3 D geotextile network, combining geotextile (filter) and geotextile network (drainage and protection) to provide the effect of "filter-drainage-protection". The three-dimensional structure of the composite drainage network core can withstand a high compression load during the whole use process, and can maintain a considerable thickness, providing a good water conductivity.
1.Three-dimensional composite drainage network is a new type of geosynthesis material. The constituent structure is a three-dimensional geotechnical mesh core with needle perforated non-woven geotextiles stuck on both sides. The three-dimensional geotechnical grid core consists of a thick vertical rib and an oblique rib at the top and bottom. The groundwater that rapidly exits the road also has a pore maintenance system that blocks capillary water under high loads. Together, it can also use isolation and foundation reinforcement. During the whole use process can withstand high compression load, and can maintain considerable thickness, providing good water conductivity. It can replace the traditional sand and gravel layer. Laying between the foundation and the foundation, used to discharge the water between the foundation and the foundation. It automatically shortens the drainage way of the foundation, and the drainage time is greatly reduced, and extends the service life of the road.
2.Laying drainage network at the subbase can play an isolation role to prevent the base fine material from entering the ground base. The aggregate base will enter the upper part of the geonet to a limited extent. In this way, the composite geotechnical drainage network also has a potential role in limiting the lateral movement of the aggregate base, which is similar to the reinforcement effect of the geogrid. In general, the tensile strength and rigidity of the composite geotechnical drainage network are better than those of many geogrid grids used for foundation reinforcement, and this restriction will improve the supporting capacity of the foundation. Because the non-woven fabric and geotextile mat through bonding, three layers of products form an organic whole, the outer layer can be isolated from the pressure, the inner layer has a good fixation effect. In the foundation reinforcement can play a good stability role, prevent the slope, foundation sliding phenomenon.
3.After the road ages and the cracks form, the rain will enter the section. In this case, the drainage network is laid directly under the pavement in place of the drainage foundation. Provide the effect of keeping the soil particles from flow-relieving the liquid from harm.3 d composite drainage layer mesh core unique three-dimensional structure, middle reinforcement hard change, longitudinal arrangement, form the drainage channel, up and down cross reinforcement form support to prevent geotextile embedded, in the whole use process can withstand high compression load, and can maintain considerable thickness, provide a good water conductivity. It can replace the traditional sand grains and rock layer or soil layer composed of gravel, mainly used for landfill site, subgrade and tunnel inner wall drainage dredging.
