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The Usage and Function of Geosynthetics
Jun 08, 2018

Regarding the classification of geosynthetic materials, there is no unified standard so far, and it was divided into geotextiles and geomembranes in the early days, representing water-permeable and water-impermeable synthetic materials respectively. With the development of new technologies and new materials, China's Geosynthetics Engineering Application Manual classifies geosynthetic materials into four categories: geotextiles, geomembranes, special geosynthetics and composite geosynthetics. Special geosynthetics include: geogrids, geonets, geotextiles, geocells, geomembrane bags, geofoam, and more. Composite geosynthetics are compounded from the above materials, such as composite geomembrane, geotechnical composite drainage material, etc. The composition and use of some major geosynthetic materials are briefly described below.

Geotextiles: Permeable polymeric (synthetic or natural) fabric materials, processed into sheets (which can be woven, non-woven or knitted) for geotechnical, environmental hydraulic and transport engineering.

Geospun fabrics: Geotextiles that are interlaced, usually at right angles, with two or more groups of fibers, single fibers, or other components.

Knitted geotextile: Made from one or more fibers, single fibers, or other components.

Non-woven geotextiles: geotextiles that are oriented or randomly bonded.

Geomembrane: Impervious material processed into sheets, which can be synthetic, asphalt or bentonite, used in geotechnical, environmental, hydraulic and transport engineering.

Synthetic geomembrane: The main component is a polymeric composition, such as polyethylene, polypropylene, pvc, epmd or other material geomembrane.

Asphalt geomembrane: The main component is asphalt synthetic geomembrane.

Bentonite geomembrane: A geomembrane whose main component is a powder or granular bentonite, usually called a geosynthetic clay pad.

Geogrid: Processed into a one-way or two-way sheet-like polymer structure, consisting of a common mesh of internal components, which can be extruded, bonded, or interweaved. The openings are larger than the components, used in geotechnical technology, and the environment. , hydraulics and transportation engineering.

One-way geogrid: A geogrid with a tensile strength that is much greater in one direction (longitudinal or transverse) than the other.

Bi-directional geogrid: Geogrid with similar tensile strength in both longitudinal and transverse directions.

Geonet: Processed into a sheet-like polymer structure, consisting of regularly overlapping internal striated meshes. The openings are usually larger than the components used in geotechnical, environmental, hydraulic and transport engineering.

Geotextile: A polymer structure processed into sheets. It is composed of irregular fibers, yarns, single fibers, and regular webs. It is used in geotechnical, environmental, hydraulic and transport engineering.

Geocell: Honeycomb polymer structure consisting of strips and regular webs joined by extrusion, bonding or other methods for geotechnical, environmental, hydraulic and transport engineering.

Composite geotechnical materials: Composite polymer materials in the form of sheets or ribbons, at least one of which is composed of geosynthetic materials for geotechnical, environmental, hydraulic and transport engineering.

Bionet: a permeable natural polymer material, in the form of a sheet, consisting of regularly staggered or knotted yarns, whose openings are usually larger than the components used in geotechnical, environmental, hydraulic and transport engineering.

Application area

Geosynthetics, different products have different characteristics and can be applied in many engineering fields.

Areas that have been applied include geotechnical engineering, civil engineering, hydraulic engineering, environmental engineering, traffic engineering, municipal engineering, and land reclamation projects.

Protection:

Soil erosion is a natural process caused by the action of hydraulic and wind power. There are many factors that affect it, such as soil, vegetation, and landforms. Under certain conditions, human activities will also accelerate this process. If such erosion is not properly managed, it may cause great damage to existing buildings and the environment.

In the field of soil erosion control, geosynthetic materials can be applied in such areas as slope protection, waterway protection, coastline protection, beach cofferdams, vegetation restoration, rockfall protection nets, and flood control dam construction. Depending on the engineering characteristics and site conditions, erosion control projects may involve one or more geosynthetic products.

     In the slope protection project, in addition to using some geosynthetic materials, there is a need to use soil nails and even rock bolts to ensure the stability of the protection system. In some cases, geotextile bags filled with mortar are also used to fix the protective surface, and seeds are scattered in the gaps of protective structures to cultivate vegetation to prevent the loss of water and soil.


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Our factory is located in Changzhou, China, which takes up more than 25,000 square meter with well-equipped testing equipment and strong technical force.

Our main products include various size and colors of PP/PET woven and non-woven fabrics (of 91cm-620cm width), such as geotextiles, geotextile containers (geotextile bags, tubes and shipping containers), silt fence, geogird, geosynthetics and so on.

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