1, product introduction geotextile is prescribed by the state for a new type of civil engineering construction material made or short fibers through the various equipment and process layout into a network, through acupuncture and other processes in different fibers interwoven together, intertwined fixing the fabric normalized so that the fabric is soft, plump, thick, stiff, to achieve different thickness to meet the requirements, according to the length of wire into a non-woven staple fiber nonwoven geotextile or geotextile, the higher tensile strength than the short wire. has a certain softness of the fiber also has good tear resistance primary role is to: filtration, drainage, reinforcement effect. Sizes from 100 grams per square meter to 800 grams per square meter. The main material is polyester fiber, with excellent water permeability, filtration, durability deformation adaptability, but also has good surface drainage capacity of 20,000, geotextile-related parameters No. 100,150,200,250,300 350,400,450,500,600 80 ° Remark 1 unit area of ??mass deviation% -6 -6 -6 -5 -5-5-5-5-4-4-4 2 Thickness, mm ≥ 0.8 1.2 1.6 1.9 2.2 2.5 2.8 3.1 3.4 4.2 5.5 3 Width deviation% -0.5 4 Breaking strength KN / M ≥ 4.5 7.5 10.0 12.5 15.0 17.5 20.5 22.5 25.0 30.0 40.0 Elongation aspect to the 5% 40-80 6 CBR bursting strength KN ≥ 0.8 1.4 1.8 2.2 2.6 3.0 3.5 4.0 4.7 5.5 7.0 7 equivalent aperture 090, mm 0.07-0.2 3, geotextile properties (1), no chemical additives, prop without heat treatment, is environmentally friendly building materials (2), has good mechanical properties, good permeability and corrosion resistant , anti-aging (3), has a strong anti-buried, corrosion resistance fluffy structure, with good drainage properties (4), have a good coefficient of friction and tensile strength, reinforced with a geotextile performance (5), with isolation, filtration, drainage, protection, stability, strengthen the function (6), can adapt to uneven grass-resistant construction to external damage, creep (7), the overall continuity, light weight, convenient construction ( 8), as the permeable material, so with a good filter isolation, puncture resistance ability, and they have good protection performance 4, geotextiles function (1), the use of geotextile good air permeability and water permeability, so that water flows through, so as to effectively retain sand loss; (2), geotextile has good conductivity properties, which can be formed within the soil drainage channels within the structure of soil efflux of excess liquids and gases; (3), the use of geotextile reinforced soil tensile strength and resistance to deformation, enhanced structural stability to improve soil quality; (4), the effective stress will focus on proliferation, transfer, or decomposition, to prevent soil by external force damage; (5), to prevent the upper and lower sand, soil and concrete mixed between; (6), mesh clogging due to unshaped reticular formation of fibrous tissue with strain and motion of (7), the high permeable sex under the pressure of the water in the soil, can still maintain good permeability; (8), corrosion resistance to polypropylene or polyester fiber as raw material, acid, non-corrosive, non-insect, anti-oxidation; (9), the advantages light weight, simple construction, easy to use, shorten the construction period, improving economic efficiency and prolong project uses week 5, geotextile applications (1), for the reinforced retaining wall backfill, or for anchoring retaining wall panels. Construction of retaining wall or abutment parcel. (2), reinforced flexible pavement, repair cracks on the road to prevent the pavement reflection cracking. (3) to increase the gravel and reinforced soil slope stability, erosion and soil freezing at low temperatures (4), the road between the ballast and subgrade isolation layer, or between the roadbed and the soft base isolation layer. (5), artificial fill, rubble or materials field and ground isolation layer isolation between different permafrost. Filtration and reinforcement effect. (6), ash storage dam or dam upstream dam face of the initial filter layer, retaining wall backfill drainage systems filter layer. (7), drainage or gravel drainage culvert underground pipe around the periphery of the filter layer. (8), water conservancy project in wells, wells or baroclinic pressure pipe filter layer. (9), highways, airports, railways and other road twitter and artificial rockfill and foundation isolation between the geotextile layer (10), dam internal vertical or horizontal drainage, buried in the soil pore water pressure dissipated. (11), dam or embankment in Geomembrane or concrete surface cover behind the lower part of the drainage. (12), excluding the surrounding tunnel seepage, reduce exposure to external water pressure lining around the buildings and the water seepage (13), artificial fill foundation stadium foundation drainage. (14), roads (including temporary roads) railway, embankment, dam, airports, stadiums and other projects in order to strengthen the weak foundation