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Identifying subsurface liner vulnerabilities
August 1st, 2025
Q: We are currently investigating a failure in a single composite liner system, caused by a settlement crack resulting from differential movement between the clay barrier and the underlying rock subgrade. This led to a tear in the geomembrane and subsequent flow through the underdrain system. The affected area has been exposed and is undergoing repair. […]
Testing a new method for mining-waste storage using polymer-enhanced geosynthetic clay liners
July 31st, 2018
Geosynthetic clay liners (GCL) and polymer-modified geosynthetic clay liners (PMG) are gaining favor for use in industrial waste disposal and ore-processing applications (Athanassopoulos et al. 2015, Donovan et al. 2016a, Donovan et al. 2016b). The GCL or PMG can be a component of a composite liner system that will allow for increased performance (relative to […]