Use of geomembranes in embankment dams: State-of-the-art report

The central theme of this state-of-the-art report is the function of geosynthetic barrier systems, primarily utilizing geomembranes, in embankment dams. We will explore their application for waterproofing in both new dam projects and the refurbishment of older structures. The lecture acknowledges the widespread adoption of geomembranes (over 200 embankment dams in the world, dating back to Contrada Sabetta, Italy, 1959) and examines how they work synergistically with other geosynthetics, such as geotextiles and geonets, to provide not only barrier, but also protection and drainage. Key discussion points include a global review of design and construction methods, material selection guidelines, a comparative analysis of sustainability against traditional solutions (as soils, cement concrete, bituminous concrete and metallic blankets).