Queries

The following questions have been asked by one of our readers: “Has anyone experienced the floating of the primary geomembrane of a lining system consisting of a geomembrane/GCL composite primary liner, a geonet leak detection layer, and a geomembrane secondary liner?” Please send comments to info@geosynthetica.net.
In a similar vein, “If there is a 3 m head of water on a single HDPE geomembrane liner with no water underneath it the geomembrane will obviously be in intimate contact with the subgrade. But if the groundwater is 0.5 m above the floor of the pond, and there is no leak in the geomembrane, where will the floor geomembrane be?”
a) on the subgrade
b) floating at 0.5 m or
c) elsewhere
Comments to info@geosynthetica.net.