Cellular confinement

Cellular confinement

Cellular confinement systems are widely used in construction for erosion control, soil stabilization on flat ground and steep slopes, flexible channel linings, load support and earth retention. Typical cellular confinement systems are made with ultrasonically-welded HDPE strips that are expanded on-site to form a honeycomb-like structure which may be filled with sand, soil, rock or concrete. [State of California Department of Transportation, Division of Environmental Analysis, Stormwater Program. Sacramento, CA. [http://www.dot.ca.gov/hq/env/stormwater/pdf/CTSW-RT-06-137-20-1.pdf "Cellular Confinement System Research."] 2006.] The systems were originally designed by the Army Corps of Engineers for use in as a soil stabilization method for moving heavy equipment through soft desert sands. [" [http://www.fhwa.dot.gov/download/hep/fspubs/pdf02232821.pdf Managing Degraded Off-Highway Vehicle Trails in Wet, Unstable, and Sensitive Environments] ", US Department of Agriculture in conjuction with USDOT, Federal Highway Administration. Page 28. October 2002.]

How it works

Cellular confinement systems impede lateral movement of the fill material between cells. [" [http://www.wipo.int/pctdb/en/wo.jsp?wo=2008037972&IA=GB2007003630&DISPLAY=DESC Cellular Confinement Systems] ", World Intellectual Property Organization. March 2008] Lateral soil movement is a common cause of washboard dirt roads and soil erosion.

ee also

*Gabion, a historic precursor for both erosion control and defense
*Erosion control, a common use for cellular confinement systems.
*Washboarding. Cellular confinement acts as a solution to this common problem.

References

External links

* [http://www.envirogrid.com/ EnviroGrid] (homepage of a cellular confinement system)
* [http://www.prs-med.com/ PRS] (homepage of a cellular confinement system)


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