Plastic blind ditch plastic blind ditch is heated to melt the thermoplastic synthetic resin extruded through the nozzle filaments stacked together, and its contact point solution Results from the three-dimensional porous material. The body wrapped in geotextile fabric as the outer membrane, a porous rectangular, hollow rectangular, porous circular, hollow circular form four structures, a variety of sizes. Abroad had to use more than two decades, it is widely used in the tunnel seepage drainage, rail road subgrade drainage, the soft ground embankment, retaining wall filtration, the slope and the inner slope drainage, underground drainage construction moisture, lawn set of drainage all kinds of engineering systems, roof garden set drainage, sewage treatment plants and landfills, etc., was widely welcomed by the engineering sector. Characteristics of plastic blind ditch materials and other blind ditch material compared with the following characteristics: (a) high compressive strength, good pressure resistance plastic blind ditch itself is modified with the toughness of many root knot made of plastic wire melting, there is no by pressure off, destroying possible. In 250KPa pressure, the cross section porosity remains above 60%, even greater pressure is applied, there is always a gap through the water, there are still 10-15% porosity, and the response is good. (B) the surface opening rate, a set of good drainage ditch plastic blind surface average opening ratio 90-95%, much higher than other similar products. Can most effectively collect soil seepage and timely collection of discharge. (C) a permanent life of plastic blind ditch combination of three-dimensional mesh filter desert and modified polyethylene corrosion-resistant fibers, have the advantage in the soil, the water never degraded, to be anti-aging formula, can holding permanent material characteristics unchanged. Optionally plastic blind ditch membrane (d) membrane according to different soil conditions chosen, fully meet the needs of the project, and avoids the shortcomings of old products a single membrane. (E) to facilitate the construction of light weight plastic blind ditch, site construction and installation is very convenient. Construction efficiency is greatly accelerated. (F) flexible, to adapt to the soil deformation. Specifications Item blind ditch round square type YA7030 TA1435 YA1550 YB1235 YB60 YB80 YB100 YB150 YB200 appearance foot mm≥ 70 * 30 140 * 35 1500 * 50 120 * 35 Φ60 Φ80 Φ100 Φ150 Φ200 hollow foot mm≥ 40 * 10 40 * 10 * 2 40 * 10 * 2 40 * 10 * 2 Φ25 Φ45 Φ55 Φ80 Φ120 Weight g / m≥ 350 650 750 600 400 750 1000 1800 2900 porosity% ≥ 82 85 85 82 82 82 84 85 85 flat rate of 5% 608 050 708085804050 compression flat rate of 10% 110 1,207,011,016,017,014,070 70 of the flat ≤ 15 150% 160 125 130 20022018010090 flat rate of 20% 190 190 160 180 250,280,220,125,120