|COOKIES: By using this website you agree that we can place Google Analytics Cookies on your device for performance monitoring.|
Short and long-term leakage through composite liners
If you have a question about this talk, please contact Anama Lowday.
The factors that may affect short-term leakage through composite liners are examined. It is shown that the leakage through composite liners is only a very small fraction of that expected for either a geomembrane (GM) or clay liner (CL) alone. However, the calculated leakage through holes in a GM in direct contact with a clay liner is typically substantially smaller than that actually observed in the field. It is shown that calculated leakage taking account of typical connected wrinkle lengths observed in the field explains the observed field leakage through composite liners. Provided that care is taken to avoid excessive connected wrinkle lengths, the leakage through composite liners is very small compared to a typical GM or CL alone. It is shown that the leakage through composite liners with a geosynthetic clay liner (GCL) is typically much less than for composite liners with a compacted clay liner (CCL). Finally, factors that will affect long-term leakage through composite liners are discussed. It is concluded that composite liners have performed extremely well in field applications for a couple of decades and that recent research both helps understand why they have worked so well, but also provides new insight into issues that need to be considered to ensure excellent long-term liner performance of composite liners—especially for applications where the liner temperature can exceed about 35degC.
This talk is part of the Engineering Department Geotechnical Research Seminars series.
This talk is included in these lists:
Note that ex-directory lists are not shown.
Other listscri Explore Islam Week 2013 Hughes Hall Hats Off Club Seminars
Other talksLife as we know it Topological Kondo Insulators and SmB6: magnetism meets topology. Intellectual Societies: Intimacy and Knowledge in the 19th Century Dripping, jetting, drips and wetting: the magic of microfluidics On the origins of mycorrhizal symbioses Autumn Cactus & Succulent Show