Description
Geotextiles are permeable fabrics that, 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 (resembling mail bag sacking),needle punched (resembling felt), or heat bonded (resembling ironed felt).
Geotextiles are durable and are able to soften a fall if someone falls down. Geotextiles and related products have many applications and currently support many civil engineering applications including roads, airfields, railroads, embankments, retaining structures, reservoirs, canals, dams, bank protection, coastal engineering, and construction site silt fences or geotube. Usually, geotextiles are placed at the tension surface to strengthen the soil.
Geotextiles are also used for sand dune armoring to protect upland coastal property from storm surge, wave action and flooding. A large sand-filled container (SFC) within the dune system prevents storm erosion from proceeding beyond the SFC. Using a sloped unit rather than a single tube eliminates damaging scour. Erosion control manuals comment on the effectiveness of sloped stepped shapes in mitigating shoreline erosion damage from storms. Geotextile sand-filled units provide a “soft” armoring solution for upland property protection. Geotextiles are used as matting to stabilize flow in stream channels and swales Geotextiles can improve soil strength at a lower cost than conventional soil nailing.[5] In addition, geotextiles allow planting on steep slopes, further
securing the slope.
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