Sujets clés pour les barrières d'installations de stockage de déchets

International audienceThe objective of the paper is to give an update in key topics related to performance issues of barrier systems for landfills. The objective of using barrier systems is to minimize the impact of contaminants on the surrounding environment. To achieve this goal puncture protection of the geomembrane must be ensured. An update is first given is this matter. The question of the stability on slope of geosynthetic barrier systems is then discussed and an insight is given in modeling and laboratory measurement of parameters required to perform reliable modeling, especially as regards the case of piggy-back landfills. Finally, the question of transfers though bottom barrier systems is addressed, giving an update especially in the analytical solutions developed in the past 10 years in China in this matter