PROTECTIVE GASKET OF GEOMEMBRANE Russian patent published in 2012 - IPC E02B3/06 E02D17/20 

FIELD: construction.

SUBSTANCE: protective gasket 1 of a geomembrane 19 comprises a geogrid 2 from a polymer material and geotextile 3 and 4 attached to it at both sides. Cells 5 of the geogrid 2 are formed with imposed crossing bars 6 and 7. Bars 6 and 7 are arranged relative to the thickness δ_gr of the geogrid 2 in two levels and are fixed in units of crossing with each other 8. The thickness δ_g of the gasket 1 is determined by height in the cross section of bars 6 and 7 and thickness of geotextile 3 and 4. Cells 5 are filled with a polymer foam 9, which hardens. Cells 5 may also be filled with a polyurethane foam or foam from polyvinyl chloride nanocomposites.

EFFECT: higher reliability of geomembrane protection against piercing.

3 cl, 3 dwg