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Water Portal / Rainwater Harvesting / Groundwater recharge / Gabions

238 bytes added, 18:41, 1 May 2012

→‎Construction, operations and maintenance

==Construction, operations and maintenance==

[[Image:gabionwirerock.jpg|thumb|right|300px|Gabions are essentially wire mesh enclosures filled with rocks. Photo: Fotolio.com.]]

[[Image:gabionConstruction.jpg|thumb|right|300px|A close-up view of the process of gabion basket construction. Photo: [http://sgp.undp.org/web/images/5052/a_close_up_view_of_the_process_of_gabion_basket_construction.html sgp.undp.org.]]]

A gabion structure can be built without any mechanical equipment and works can start immediately because the initial stages of excavation and laying of foundations are minimal and can be carried out by hand. Likewise, for underwater structures, the first layer of gabions can be laid in water or in mud without the need for draining the site. Upon completion, a gabion structure will take its full load immediately without the waiting periods - of up to one month - normally associated with concrete structures. Furthermore, it is relatively easy to obtain good construction quality because of the simplicity of the two construction materials, i.e. the gabion baskets and the stones or rock fragments.

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