Categorization of Erosion Control Matting for Slope Applications
Erosion control is an important aspect of any Georgia Department of Transportation (GDOT) construction project, with the extreme negative impacts of high sediment loads in natural waterways having been well documented. Selection of a proper erosion control mat for protection of slopes on GDOT rights-of-way should be made with primary emphasis on the steepness of slope, which will govern the hydraulic stress to which the soil and vegetation are subject. Additional considerations to selection of erosion control matting include time to establish vegetation, followed by selection of a product made out of synthetic or natural fibers. GDOT has 79 approved products, produced by 19 manufacturers listed in QPL-62 dated May 29, 2015. Due to the high number of products which a designer can specify, a spreadsheet-based selection tool was developed to specify which QPL listed erosion control products are appropriate for given conditions. A laboratory-based investigation of the erodibility of coarse-grained soils was performed. The evidence shows that mean particle size is the primary variable in determining the raindrop splash displacement of sands. The effect of particle shape and void ratio on raindrop splash was minimal.
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Corporate Authors:
Georgia Institute of Technology, Atlanta
School of Civil and Environmental Engineering
790 Atlantic Drive
Atlanta, GA United States 30332-0355Georgia Department of Transportation
Office of Research, 15 Kennedy Drive
Forest Park, GA United States 30297-2534Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC United States 20590 -
Authors:
- Burns, Susan E
- Choo, Hyunwook
- Won, Jong Muk
- Publication Date: 2015-7
Language
- English
Media Info
- Media Type: Digital/other
- Edition: Final Report
- Features: Figures; References; Tables;
- Pagination: 54p
Subject/Index Terms
- TRT Terms: Coarse grained soils; Embankments; Erosion control; Road construction; Slopes; Synthetic fibers; Vegetation
- Uncontrolled Terms: Erodibility; Erosion control mats; Natural fibers; Vegetation establishment
- Geographic Terms: Georgia
- Subject Areas: Construction; Geotechnology; Highways;
Filing Info
- Accession Number: 01644105
- Record Type: Publication
- Report/Paper Numbers: FHWA-GA-16-11-22, RP 11-22; T.O. 02-101
- Contract Numbers: RP 11-22; PI# 0010764
- Files: TRIS, ATRI, USDOT, STATEDOT
- Created Date: Aug 21 2017 10:51AM