Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Behavior of Double Geonet Drainage Systems.
Author Koerner, R. M. ; Hwu., B. L. ;
CORP Author Drexel Univ., Philadelphia, PA. Geosynthetic Research Inst.;Environmental Protection Agency, Cincinnati, OH. Risk Reduction Engineering Lab.
Publisher c1989
Year Published 1989
Report Number EPA-R-813953; EPA/600/J-89/131;
Stock Number PB90-140872
Additional Subjects Surface drainage ; Materials tests ; Polymers ; Fabrics ; Mechanical properties ; Earth fills ; Shear tests ; Soil stability ; Compressive strength ; Leaching ; Performance evaluation ;
Library Call Number Additional Info Location Last
NTIS  PB90-140872 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/15/1990
Collation 9p
Geonets have become a popular component of leak detection systems at surface impoundments, waste piles, landfills and heap leach systems. They provide a reasonable alternative to gravel drainage designs which become costly when large quantities of leachate are anticipated. The paper examines the potential increase in in-plane flow by placing two layers of geonet materials atop one another. The increase in flow was measured for three different cross sections: Geomembrane overlain by double geonets overlain by geomembrane; geomembrane overlain by double geonets overlain by geotextile and sand; geomembrane overlain by double geonets overlain by geotextile and clay. The effect of soil intrusion was studied on the applicable cross sections. Compressive strength of double geonets were studied to determine the limits of applicability, and shear testing was performed to evaluate constructability and stability.