Geosynthetic clay liner definition

Geosynthetic clay liner. (GCL) means a low-permeability manufactured material consisting of a layer of low permeability clay placed between two geotextiles.
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Geosynthetic clay liner or “GCL” means a factory-manufactured hydraulic barrier consisting of a layer of bentonite or other very low permeability material supported by geotextiles and/or geomembranes, and mechanically held together by needling, stitching, or chemical adhesives.
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Examples of Geosynthetic clay liner in a sentence

  • Geosynthetic clay liner (GCL) penetration details should also be as recommended by the GCL manufacturer.

  • For the sideslope areas the liner system consists of the following components from top to bottom: Operations layer; 80-mil HDPE geomembrane; Geosynthetic clay liner and Prepared subgrade.

  • Geosynthetic clay liner (GCL) is often used as a mechan- ical and hydraulic barrier to ensure both safety of the de- sign (e.g. in slopes) and prevention of leakage of chemi- cal and hazardous substances and fluid into environment.

  • The cover system is shown on Figure 5 and will consist of the following components, listed sequentially from the top to bottom of the cover system: C Vegetation; C 6-inch-thick topsoil layer; C 12-inch thick protective soil layer; C Non-woven geotextile; C 12-inch-thick granular drainage layer; C 40-mil, HDPE geomembrane layer; and C Geosynthetic clay liner (GCL).

  • Once this is done, the Group Lead reviews the sub-feature estimations and schedules the Epic.

  • The barrier system (Class B) for the rubble disposal cell is as follows, from the bottom upwards: • In situ material compacted in 300 mm layers to 98% Proctor Density; • 150 mm layer of screened norite (ripped and recompacted); • Geosynthetic clay liner (specification as for waste cells above); • 2 mm HDPE geomembrane; • 1000 g/m2 non-woven geotextile; • 150 mm drainage layer of washed 38 to 50 mm stone; • 750 g/m2 non-woven geotextile; • 300 mm pioneering layer of fine waste rock spoil material.

  • Geosynthetic barriers typically consists of either a Geosynthetic clay liner or a geomembrane (for example, HDPE, PVC, PP, etc.), or a combination of both.

  • Symbol: GCO.- Geosynthetic clay liner: a factory assembled structure of geosynthetic materials and low hydraulic conductivity clay materials (bentonites), in the form of a sheet.

  • Eroded areas were filled and a final cover system was constructed in 2011 on the side slopes and in the damaged top plateau areas consisting of the following components: Compacted fly ash material; overlain by Geosynthetic clay liner (GCL); overlain by 9” sand drainage layer with a drainage pipe system (side slope only); overlain by 8” min.

  • The final cover system constructed on less than or equal to 5H:1V (horizontal to vertical) slopes consisted of the following components, from top to bottom: • Minimum 6-inch thick top soil layer.• Minimum 12-inch-thick vegetative soil layer,• Geosynthetic clay liner (GCL) low-permeability layer with a maximum permeability of1.0 x 10-9 centimeters per second (cm/s), and• Minimum 24-inch thick foundation soil layer.

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