Geotextile


Geotextile

Geotextiles are permeable fabrics which, when used in association with soil, have the ability to separate, filter, reinforce, protect, or drain. Typically made from polypropylene or polyester, geotextile fabrics come in three basic forms: woven (looks like mail bag sacking), needle punched (looks like felt), or heat bonded (looks like ironed felt).

As the use of geotextile fabrics has expanded, geotextile composites have been introduced and products such as geogrids and meshes have been developed. Overall, these materials are referred to as geosynthetics and each configuration—- geonets, geogrids and others—- can yield certain benefits in geotechnical and environmental engineering design. These products have a wide range of applications and are currently used to advantage in many civil engineering applications including roads, airfields, railroads, embankments, retaining structures, reservoirs, canals, dams, bank protection and coastal engineering. Usually geotextiles will be placed at the tension surface as it will strengthen the soil.

Geotextile can be used as an innovative way to improve soil strength, instead of the conventional manner using soil nailing. It is believed that the cost to have it done is much cheaper. In addition, steep slopes can then be planted with vegetation to enhance the aesthetic value.

To use geotextiles to reinforce a steep slope, two components have to be calculated:
#the tension required for equilibrium
#the appropriate layout of the geotextile reinforcement

Geotextiles have been used to protect the fossil hominid footprints of Laetoli in Tanzania from erosion, rain, and tree roots. [Renfrew, Colin and Paul Bahn, "Archaeology". 4th ed. New York: Thames 2004.]

ee also

*Hard landscape materials

References

External links

* [http://www.infratrans.gov.ab.ca/686.htm Alberta Government site on Geotechnical and Erosion Control]
* [http://www.envirotechnicalsystems.com Enviro Technical Systems. Installation of geotextile and geomembrane products]


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Look at other dictionaries:

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  • geotextile — geotextíle s. f. (sil. ge o ), pl. geotextíle Trimis de siveco, 10.08.2004. Sursa: Dicţionar ortografic …   Dicționar Român

  • géotextile — ● géotextile nom masculin Produit textile, souvent non tissé, utilisé dans le génie civil pour y assurer les rôles d anticontaminant, de drain, de filtre ou d armatures …   Encyclopédie Universelle

  • Géotextile — Les géotextiles, tissus généralement en matériaux synthétiques sont destinés aux travaux de bâtiment, de génie civil et d agriculture. Ils sont souvent et improprement appelés Bidim, du nom du leader historique des fabricants de ce produit. Il s… …   Wikipédia en Français

  • geotextile — noun a) Plastic landscape fabric which allows movement of air, water, and fertilizer into the soil. b) A tightly woven fabric used to restrict the flow of fine particles and contaminants while allowing water to pass through freely; used to… …   Wiktionary

  • geotextile — geo·textile …   English syllables

  • geotextile — ¦jē(ˌ)ōˌ noun Etymology: ge + textile : a strong synthetic fabric usually used in civil engineering construction projects (as highway or dam building) that stabilizes loose soil and prevents erosion …   Useful english dictionary

  • Géotextile non tissé — Géotextile Les géotextiles, tissus généralement en matériaux synthétiques sont destinés aux travaux de bâtiment, de génie civil et d agriculture. Ils sont souvent et improprement appelés Bidim, du nom du leader historique des fabricants de ce… …   Wikipédia en Français

  • Geocomposite — Also see Geosynthetics. The basic philosophy behind geocomposite materials is to combine the best features of different materials in such a way that specific applications are addressed in the optimal manner and at minimum cost. Thus, the… …   Wikipedia

  • Geosynthetic — Geosynthetics is the term used to describe a range of generally synthetic products used to solve geotechnical problems. The term is generally regarded to encompass four main products: geotextiles, geonets/geogrids, geomembranes and geocomposites …   Wikipedia


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