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Three-dimensional composite drainage network 15005383108 High-manager directory dimensional drainage network effect of three-dimensional composite drainage network characteristics Usage Features three-dimensional composite drainage network of joints and lap edit this section three-dimensional drainage network dimensional drainage network (also known as three-dimensional geotechnical drainage board, tunnel discharge water board, water board discharge) from the three-dimensional structure of the double-sided adhesive plastic mesh geotextile composed of water seepage, can replace the traditional sand and gravel layer, mainly for landfill drainage, embankment and tunnel wall. Three-dimensional composite drainage network composite geotechnical drainage network technical parameters and product specifications in railways, highways and other transportation infrastructure, the safety and the life of the project with its own drainage system too has a close relationship, which geosynthetic drainage system is an important component section. Edit this paragraph three-dimensional composite drainage network three-dimensional composite drainage network is a new type of geosynthetics. Composition structure is a three-dimensional geonet core, both sides have a needle stick perforated nonwoven geotextile. Three Dimensional core includes a thick vertical ribs, as well as the top and bottom of each one inclined ribs. Can be quickly discharged groundwater road, there is a void maintenance system itself, can block the capillary water under high loads. At the same time, it can also play the role of isolation and foundation reinforcement. A new type of geosynthetics. Three-dimensional composite drainage network is made of a unique three-dimensional network geotextile geotextile double-sided adhesive. Combination of geotextiles (filtration action) and geonet (drainage and protection) offers a complete "filtration - drainage - protection" feature. Three-dimensional composite drainage network core network unique three-dimensional structure, in the whole process that can withstand higher compression loads, and to maintain a considerable thickness, provide good hydraulic conductivity. Edit this paragraph properties characteristic three-dimensional composite drainage network: 1, when the load of 720kPa, a gradient of 2%, the permeability of 2500m / d, the flow rate of 13 pm/m. 2. withstand 1200kPa load creep test after 10,000 hours, retains more than 60% of the thickness, three-dimensional drainage network 3, three ribs water network core carbon black content of not less than 2%, the density of 0.94g / cm3, tensile strength of not less than 36.5kN / m, a melt index of 1.0 g / 10min, a thickness of 7.6mm. 4, nonwoven geotextile apparent aperture 0.18mm, water permeability 0.26 Sec-1, permeability 0.2cm / sec, puncture strength 580N, trapezoidal tear strength of 356 N, grip the tensile strength of 900 N, grip extension strength 50%, the burst strength 2750kPa. Edit this paragraph the role of action characteristic three-dimensional composite drainage network: 1, laying between the ground and the substrate, for discharging the water between the ground and the substrate, blocking capillary water and effectively incorporated into the edge of the drainage system. This structure is automatically shortened foundation drainage way, drainage greatly reduce the short time, and can reduce (can be used with more fines, low permeability material) using the selection of the number of foundation material. You can extend the life of the road. 2, at the end of a three-dimensional composite drainage network grass laying substrate can be prevented from entering the Community for fines (ie, for isolation). Aggregate enters the upper part of the grass-roots Geonet within a limited extent. Thus, there is a potential role of lateral movement restrictions aggregate composite geotechnical drainage network grass, in this way, it acts like a reinforcement of the role of the geogrid. In general, the composite geotechnical drainage network of tensile strength and rigidity than many geogrid reinforced foundation, which limits the role will enhance their ability to support the foundation. 3, aging roads, after crack formation, most of the rain will enter the sections. In this case, the three-dimensional composite drainage network laid directly under the pavement, instead of to drain foundation. Prior to the three-dimensional composite drainage network can into the foundation / subbase moisture to collect in advance. But also at the bottom of the three-dimensional composite drainage network packets on a film to further prevent moisture from entering the ground. Rigid road system, this structure allows a higher coefficient of Cd to design road drainage. Another advantage of this structure is likely to make the concrete more evenly hydrated (the degree of progress of the advantages of the study). Either rigid or flexible way road system, this structure can extend the life of the road. 4, in the northern climates, laying three-dimensional composite drainage network can help mitigate the effects of frost. If the depth of the deep freeze, can the geotextile laying in the substrate in shallow position, the capillary action as obstruction. Also often need to use is not easy to replace frost granular subbase, extend down to frost penetration. Easy frost backfill can fill in a three-dimensional composite drainage directly online face, until the foundation ground line. In this case, the system can be connected to the drain outlet, make groundwater level equal to or below this depth. This can potentially limit the development of ice crystals in the cold area in the spring thaw, without restrictions on the traffic load. Three-dimensional composite drainage network is a new drainage geotextile material. High density polyethylene (HDPE) as raw material, processed by a special extrusion process is made with a special three-layer structure. Intermediate ribs rigid, longitudinally arranged to form a drain passage, the upper and lower cross ribs form the supporting arrangement prevents the geotextile embedding drain passage, even at very high loads can be maintained high drainage performance. Double-sided adhesive seepage geotextile composite use, a "filtration - drainage - ventilation - Protection" overall performance, is the best drainage material. Edit this paragraph uses mainly for railways, highways, tunnels, municipal engineering, reservoir, slope protection and drainage projects significant effect. Edit this paragraph Features 1. drainage and strong (equivalent to one meter thick gravel drainage). 2. high tensile strength. 3. To reduce the chances of geotextile embedded network core, maintaining long-term stability of drainage. The long withstand high pressure loads (about 3000Ka can withstand compressive load). 5. corrosion, acid, long service life. 6. Construction of convenience, shorten the construction period and reduce costs. Edit this paragraph three-dimensional composite drainage network of joints and lap 1, adjust the direction of geosynthetics, the volume of material in the longitudinal direction perpendicular to the road. 2, composite geotechnical drainage network must be terminated, geotextile adjacent geonet core material roll along on the lap. 3, the geonet core adjacent geotextile material volume of white or yellow plastic tape connecting buckle or polymer, thereby connecting material volume. Along the length of a roll of material, connecting once every 3 feet with tape. 4, the direction of geotextile overlap should be consistent with the filler stacking direction. If the geotextile material between the foundation laying / base and sub-base, to conduct continuous wedge welding, flat welding or stitching, so geotextile lap top to get fixed. If the suture is recommended to use a flat stitch or stitch general, in order to meet the minimum requirements stitch length.