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Geotextile

 

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Geotextile



 
 
Geotextiles are permeable fabric
Fabric

A fabric is a textile material.Fabric may also refer to:*a production unit or similar practical organism, such as an ecclestiastical Fabrica Ecclesiae...
s which, when used in association with soil
Soil

Soil is the naturally occurring, unconsolidated or loose covering on the Earth's surface. Soil is composed of particles of broken rock that have been altered by chemical and environmental processes including weathering and erosion....
, have the ability to separate, filter, reinforce, protect, or drain. Typically made from polypropylene
Polypropylene

Polypropylene or polypropene is a thermoplastic polymer, made by the chemical industry and used in a wide variety of applications, including packaging, textiles , stationery, plastic parts and reusable containers of various types, laboratory equipment, loudspeakers, automotive components, and polymer banknotes....
 or polyester
Polyester

Polyester is a category of polymers which contain the ester functional group in their main chain. Although there are many polyesters, the term "polyester" as a specific material most commonly refers to polyethylene terephthalate ....
, 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.






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Geotextiles are permeable fabric
Fabric

A fabric is a textile material.Fabric may also refer to:*a production unit or similar practical organism, such as an ecclestiastical Fabrica Ecclesiae...
s which, when used in association with soil
Soil

Soil is the naturally occurring, unconsolidated or loose covering on the Earth's surface. Soil is composed of particles of broken rock that have been altered by chemical and environmental processes including weathering and erosion....
, have the ability to separate, filter, reinforce, protect, or drain. Typically made from polypropylene
Polypropylene

Polypropylene or polypropene is a thermoplastic polymer, made by the chemical industry and used in a wide variety of applications, including packaging, textiles , stationery, plastic parts and reusable containers of various types, laboratory equipment, loudspeakers, automotive components, and polymer banknotes....
 or polyester
Polyester

Polyester is a category of polymers which contain the ester functional group in their main chain. Although there are many polyesters, the term "polyester" as a specific material most commonly refers to polyethylene terephthalate ....
, 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
Geosynthetics

Geosynthetics is the term used to describe a range of generally polymeric products used to solve civil engineering problems. The term is generally regarded to encompass six main product categories: geotextiles, geogrids, geonets, geomembranes, geosynthetic clay liners, geofoam and geocomposites....
 and each configuration—- geonets, geogrids and others—- can yield certain benefits in geotechnical
Geotechnical engineering

Geotechnical engineering is the branch of civil engineering concerned with the engineering behavior of earth materials. Geotechnical engineering includes investigating existing subsurface conditions and materials; determining their physical/mechanical and chemical properties that are relevant to the project considered, assessing risks posed...
 and environmental engineering
Environmental engineering

Environmental engineeringis the application of science and engineering principles to improve the natural environment , to provide healthy water, air, and land for human habitation and for other organisms, and to remediate pollution sites....
 design. These products have a wide range of applications and are currently used to advantage in many civil engineering
Civil engineering

Civil engineering is a Professional Engineer discipline that deals with the design, construction and maintenance of the physical and naturally built environment, including works such as bridges, roads, canals, dams and buildings....
 applications including road
Road

A road is an identifiable Road number, way or Trail between Location . Roads are typically smoothed, Pavement , or otherwise prepared to allow easy travel; though they need not be, and historically many roads were simply recognizable routes without any formal construction or Maintenance, repair and operations....
s, airfields, railroads, embankment
Embankment

Embankment may refer to:* A levee or dike , an artificial bank raised above the immediately-surrounding land to redirect or prevent flooding by a river, lake or sea...
s, retaining structures, reservoirs, canal
Canal

Canals are artificial channels for water. There are two types of canals: Aqueduct canals, which are used for the conveyance and delivery of water, and waterways, which are navigable transportation canals used for passage of goods and people, often connected to existing lakes, rivers, or oceans....
s, dam
Dam

A dam is a barrier that Reservoirs surface water or underground streams. Dams generally serve the primary purpose of retaining water, while other structures such as floodgates, levees, and Dike are used to manage or prevent water flow into specific land regions....
s, 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
Soil nailing

Soil nailing is a technique in which soil slopes, Earthworks or retaining walls are reinforced by the insertion of relatively slender elements - normally steel reinforcing bars....
. 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:
  1. the tension required for equilibrium
  2. the appropriate layout of the geotextile reinforcement


Geotextiles have been used to protect the fossil hominid
Hominid

A hominid is any member of the biological family Hominidae , including the extinct and extant humans, chimpanzees, gorillas, and orangutans....
 footprints of Laetoli
Laetoli

Laetoli is a site in Tanzania, dated to the Plio-Pleistocene and famous for its hominid footprints, preserved in volcanic ash . The site of the Laetoli footprints is located 45 km south of Olduvai gorge....
 in Tanzania
Tanzania

Tanzania , officially the United Republic of Tanzania , is a country in East Africa that is bordered by Kenya and Uganda on the north, Rwanda, Burundi and the Democratic Republic of the Congo on the west, and Zambia, Malawi and Mozambique on the south....
 from erosion
Erosion

For morphological image processing operations, see Erosion 'For use of in dermatopathology, see Erosion Erosion is the removal of solids in the natural environment....
, rain
Rain

Rain is liquid precipitation . On Earth, it is the condensation of atmospheric water vapor into droplet heavy enough to fall, often making it to the surface....
, and tree
TREE

TREE was a Boston hardcore punk band formed in the summer of 1990. They were active in the Boston music scene until disbanding in 2002....
 root
Root

In vascular plants, the root is the organ of a plant body that typically lies below the surface of the soil. This is not always the case, however, since a root can also be aerial root or aerating ....
s.

See also

  • Hard landscape materials
    Hard landscape materials

    The term hard landscape is used by practitioners of landscape architecture and garden design to describe the construction materials which are used to improve a landscape by design....

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