Geotextiles, packing bags, that is, ecological bag, is to use made of tubular bag, geotextile to its material or filling with dredging mud of a geotechnical specialty materials, such as isolation, drainage water path protection function. Use packing bag can build dikes, spur dike and the sand dunes, such as structure, the current widely used Yu Haian protection, fighting and emergency operations, scour anti-seepage, reclaiming land from the sea, and other fields, plays an important role. Packing bag made from general with geotextile, underwater applications generally use polypropylene geotextile, for offshore construction, in order to ensure the bag body has enough strength, recommended woven geotextile produced, for offshore and cover conditions good place made woven geotextile bag filling may be adopted. According to the different construction environment, choose appropriate geotechnical material!
Sand sand-fixation engineering geotechnical material recommendation - geogrid, geotextile lattice room, geotextiles, geonet
Geosynthetic materials are mainly used for desert highway subgrade slope overall stability, stability and protection, the line outside the sand-fixation project. Stability of subgrade, slope stability and protection project, recommended by the geosynthetic materials mainly for the grille, a large room, geotextiles, geonet, etc.
With line sand-fixation usually adopts the geotextile bags (ecological bag) and sand-fixation, geonet sandy sand-fixation, large chamber barrier wall, geotextile bag resistance method
Type nonwoven geotextiles, also known as non-woven geotextiles. According to the different way of bonding, nonwoven geotextiles is divided into hot glue, three kinds of chemical bonding and mechanical bonding, etc.
The production of hot glue type nonwoven geotextiles, it is fiber on the conveyor belt into network, through its two reverse rotation between the hot roller of hot pressing, after netting under a certain temperature, part of the fiber softening melting, touching each other, after cooling solidification. This method is mainly for the production of thin geotextiles, thickness is commonly o. 5-1.0 mm. Since fiber is randomly distributed, fabric formed in the numerous hole sizes. Because of the weft wire points again, so the strength anisotropy is not obvious.
Spun-bonded method is one of the bonding, is a polymer material after melting, extrusion, spinning into the net, fiber reinforced after the formation of the product. This fabric thickness thin, high strength, permeability. Due to manufacturing process short, good product quality, variety specification, low cost, wide application, in recent years the rapid development of our country.
Chemical bonding geotextiles, is through the different process, the adhesive evenly applied to the web, adhesive curing, and mutual adhesion between the fibers, so that the net is strengthened, the thickness of up to 3 mm. The commonly used adhesive has polyene acetate ethylene, polyester, etc. Can also be before applying glue roller, get thinner and smaller aperture products. This kind of product in the engineering application is less.
Mechanical bonding is different machine tools will be web reinforcement, is the most widely used acupuncture method, and the water thorn method. Acupuncture method used in many needle-punching machine on the floor section as a triangle or prismatic and side hook needle, driven by machine, up and down reciprocating motion, make the network of fiber entanglement with each other, thus netting is strengthened. Products are generally in more than 1 mm thickness, porosity, high permeability, filter drainage performance is good, it is widely used in water conservancy engineering. Thorn is using high pressure water jet flow into the web, make the fiber tangles to reinforce each other. Its product is relatively soft, mainly used for sanitary products, has not been applied in engineering.
Geotextile, Non woven fabric, Landscape fabric,
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