2009 Volume 24 Pages 31-36
Landfill cap covers that simultaneously suppresses water infiltration to the waste and promotes rapid gas permeation is demanded. We have developed geocomposites (GCs) consisting of a porous sheet, which exhibits waterproof and gas permeability, and nonwovens to protect a porous sheet and investigated the characteristics of GC for application as a landfill cap cover. In this study, applicability of GC to the slope of landfill cap cover was evaluated in field test. Results show that the test slope remained stable even though water contents of the cover soil transiently increased because of the precipitation and applicability of GC as landfill cap cover on the slope was demonstrated. In addition, we proposed the outline of design on the sloping landfill cap cover that GC is installed.
