Use of Geosynthetics in Soil Reinforcement Applications

Environmental regulations dictate that landfills and surface impoundments for the disposal of hazardous and non-hazardous waste have liners (base, side-slope, and cover liners) and a leachate (contaminated water that emanates from a disposal site) collection and removal system in order to protect air, water, and land resources. Base and side-slopes of containments are lined with compacted clay or geomembrane (commonly HDPE) or both. Cover liners generally incorporate a foundation material overlain by a clay and/or geomembrane (commonly VLDPE which is more flexible than HDPE) liner. Geosynthetic clay liners may be used in place of clay. The leachate collection and removal system is 

Sandbags, riprap, concrete blocks, gabions or other armour revetment systems. 

Barrier layer (compacted clay, geomembrane, geosynthetic clay liner) 

Geomembrane protection Geomembrane Compacted clay Subgrade soil 

---