Plastic blind ditch introduction and description

Plastic blind ditch is also known as dark ditch, culvert, etc., the main function is to collect and discharge soil seepage. It is used to reduce groundwater pressure, remove excess water, and protect soil and buildings from being destroyed due to infiltration deformation. Widely used in civil engineering, transportation, water conservancy, civil construction, mining, environmental protection and other construction projects of underground drainage engineering. With the development of polymer materials, foreign countries developed plastic blind ditch in the 1970s, the product has overcome the shortcomings of traditional blind ditch, with high opening rate, strong compression performance, large displacement, good durability and other advantages. Therefore, it is generally welcomed by the engineering field and has been widely used. China began to develop a new generation of plastic blind ditch materials from the 1980s, and developed products for practical engineering applications in the early 1990s.

Product features:

1) The plastic blind groove itself is made of many modified plastic wires with the same toughness, and there is no possibility of being crushed or destroyed. Under 250kpa pressure, the section voidage remains above 60%, even if a larger pressure is applied, there is always a water gap, there is still 10~15% of the gap, and the recovery is good.

2) The average surface opening rate of plastic blind ditch is 90~95% which is much higher than other similar products. It can effectively collect the seepage water in the soil and collect and discharge it in time.

3) The three-dimensional mesh combination of the filter membrane made of corrosion-resistant fiber and modified polyethylene has the advantages of non-degradation in soil and water, and can be maintained with anti-aging formula. The sex material does not change the characteristics.

4) The filter membrane of the plastic blind ditch can be selected according to different soil conditions, fully meeting the needs of the project, and avoiding the single shortcomings of the old product filter membrane.

5) The proportion of plastic blind ditch is light, the on-site construction and installation is very convenient, and the construction efficiency is greatly accelerated.

6) After more than 20 years of domestic and foreign engineering practice, fully illustrate the reliability of this product, the product by the Ministry of Communications, the Ministry of Water Resources, the Ministry of Electric Power Industry Nanjing Academy of Water testing, product quality and performance indicators have reached. Standard, some indicators have exceeded Japan, while the price is far lower than Japanese imports.

1. The composition fiber of the plastic blind ditch is about 2mm wire strips, which are fused into a three-dimensional mesh, and the principle is the same as that of the truss of the steel structure. The surface porous shield is 95-97%, which is more than 5 times that of the porous tube and 3-4 times that of the resin mesh tube, and the surface water absorption is high.

2, because it is a three-dimensional structure, the voidage is 80-95%, the space and management are the same and light, the compression performance is more than 10 times stronger than the resin of the pipe structure, therefore, even if the overload is pressed, but because it is a three-dimensional structure, the residual void is up to more than 50%, there is no problem of no water flow, without considering that it will be crushed by earth pressure.

3, the compressive strength is large, 250KPa pressure, its compression rate is less than 10%.

4, with anti-aging agent, durable, underwater, soil in the medium place for decades can also ensure stability.

5, compressive and flexible, for bends and other bends can also be constructed, very lightweight, if the backfilling depth is about 10cm, can also be backfilled with bulldozers.

6. Due to the above characteristics, various problems in the traditional blind ditch in the past, such as uneven settlement or partial occlusion caused by overload, and the problem of no functional interruption caused by the gap being crushed, can be solved by plastic blind ditch materials.

7, due to the use of hot melting molding without the use of binders, it will not cause collapse due to aging and stripping of binders.