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Design considerations for GCLs in leach pad liner systems
GCLs are increasingly used in leach pads because of improved containment, the limited availability of fine-grained soils at many mine sites, speed of installation, and reduced risk of cost overruns and construction delays. Because conditions under an ore heap can be extreme - harsh chemical environments, high temperatures, enormous normal stresses, and coarse-grained angular soils - the use of geosynthetic materials and GCLs in these applications requires special design considerations, including: puncture protection, chemical compatibility, and shear strength and slope stability improvement methods. This article will discuss designing with GCLs in leach pad liners with respect to puncture protection for the geomembrane, chemical compatibility, and shear strength for slope stability. The information presented will include a review of the existing literature, the authors' project experience, and the latest research intended to improve GCL performance in these aggressive conditions.
Design considerations for GCLs in leach pad liner systems
GCLs are increasingly used in leach pads because of improved containment, the limited availability of fine-grained soils at many mine sites, speed of installation, and reduced risk of cost overruns and construction delays. Because conditions under an ore heap can be extreme - harsh chemical environments, high temperatures, enormous normal stresses, and coarse-grained angular soils - the use of geosynthetic materials and GCLs in these applications requires special design considerations, including: puncture protection, chemical compatibility, and shear strength and slope stability improvement methods. This article will discuss designing with GCLs in leach pad liners with respect to puncture protection for the geomembrane, chemical compatibility, and shear strength for slope stability. The information presented will include a review of the existing literature, the authors' project experience, and the latest research intended to improve GCL performance in these aggressive conditions.
Design considerations for GCLs in leach pad liner systems
Athanassopoulos, Chris (author) / Smith, Mark (author)
Geosynthetics ; 32 ; 22-33
2014
11 Seiten, Bilder, Tabellen, Quellen
Article (Journal)
English
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