SAFETY BOSSED MEMBRANE FOR LANDFILLS
Safety bossed membrane (10a, 10b) for landfills, mines or tunnels, which enables drainage and waterproofing under heavy loads, consisting of a plastic sheet with small-sized hollow bosses (100), arranged in a regular pattern with a density higher than 25000 bosses/m 2 ; they have a combined shape, with a body (101) shaped as a truncated pyramid and a head (102) in the form of a deformable spherical cap, which are interlocked and connected to each other in such a way as to be progressively yielding, to uniformly redistribute the loads, to facilitate drainage and to prevent cracks on the interface layers. The head (102) has on the inside a progressive reduction in the thickness of the material, like a neck (111), that makes it yielding in a uniform and progressive way, while the base (103) is stiffened. In a variant of the invention (10b), for steep slopes, the lower surface is provided with aligned non-slip projections (116) between the openings (108).
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Published patent application
Disclosure date: 10-04-2018
Publication date: 04-10-2019
Applicant: TEMA TECH AND MATERIALS SRL, IT
Inventor: BUSATTA NICOLA, IT ; CAIS FEDERICO, IT
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