Geosynthetic Clay Liners

Numerical Model to Predict the Hydraulic Conductivity of Geosynthetic Liner Systems

Geosynthetic clay liners (GCLs) are thin manufactured hydraulic barriers that consist of a thin layer of bentonite sandwiched between two geotextiles or mixed with an adhesive and glued to a geomembrane. Many studies have addressed how the hydraulic performance of GCLs is affected by permeation with the leachate from municipal solid waste landfills and coal combustion products.

Although numerous studies related to field and laboratory tests on GCLs can be found in the literature, numerical studies of hydraulic conductivity of GCLs are relatively scarce.

The study aims to develop numerical model to predict the hydraulic conductivity of geosynthetic

clay liners . The main objectives of this study are:1) Develop the numerical model to predict the hydraulic conductivity of B-P GCLs; 2) Validate the numerical model by laboratory tests considering effective stress, polymer loading, hydration.