...J. P. Giroud; A. Zhao; H. M. Tomlinson; J. G. Zornberg The focus of this paper is on applications (e.g. some leachate collection layers in landfills) where a drainage system consists of a geocomposite overlain by a sand layer. If the geocomposite does not have sufficient flow capacity to convey all...

... Leachate collection Landfill Heap-leach pad Technical Paper by R.W.I. Brachman and R.P. Krushelnitzky STRESS CONCENTRATIONS AROUND CIRCULAR HOLES IN PERFORATED DRAINAGE PIPES ABSTRACT: Stress concentrations around circular holes in perforated buried pipes obtained from three-dimensional elastic finite...

... in a leachate collection layer. The liquid collection material is generally a geosynthetic (such as a geonet) on the steep slope and is either a geosynthetic or a granular material (such as sand or gravel) on the other slope. Design methods are available for the case where there is a drain that promptly removes...

..., the paper shows how the proposed method can be combined with an equation giving the head of leachate on top of the geomembrane liner. The resulting equation makes it possible to select an optimum leachate collection material to minimize leachate migration through defects in the geomembrane liner. Design...

... layers: gravel, sand and geonets. KEYWORDS: Geomembrane, Defect, Leachate migration, Leachate collection, Leakage, Leakage collection, Liner system, Double liner, Geosynthetic leakage collection layer. AUTHORS: J.P. Giroud, Senior Principal, GeoSyntec Consultants, 621 N.W. 53rd Street, Suite 650, Boca...