Gas venting is not a primary function of geosynthetics in geoenvironmental engineering. The primary functions include reinforcement, filtration, drainage, and separation.

Geosynthetics reinforce soil primarily through friction between the geosynthetic and the soil particles.

Geosynthetics are used in landfill construction to prevent leachate migration, control erosion, and improve drainage.

Geotextiles are the most common type of geosynthetic used in road construction, primarily for separation and filtration purposes.

Geosynthetics are used in coastal engineering to protect shorelines from erosion, create artificial reefs, and stabilize dunes.

The primary function of a geosynthetic clay liner (GCL) is to prevent water infiltration.

Geosynthetics are used in mining operations to control erosion, prevent groundwater contamination, and stabilize slopes.

Geosynthetics filter sediment primarily through straining, which is the physical separation of particles based on size.

Geosynthetics are used in agriculture to improve crop yield, control erosion, and conserve water.

Geogrids are the most common type of geosynthetic used in geosynthetic reinforced soil (GRS) walls due to their high tensile strength and ability to distribute loads.

Geosynthetics are used in pavement construction to reinforce the pavement structure, prevent reflective cracking, and improve drainage.

Geosynthetics improve drainage primarily through their high permeability, which allows water to flow through them easily.

Geosynthetics are used in geosynthetic-encased columns (GECs) to improve the bearing capacity of soft soils, reduce settlement, and control lateral earth pressures.

Geosynthetics separate different materials primarily by acting as a physical barrier between them.

Geosynthetics are used in geosynthetic tube containers (GTCs) primarily to store and transport hazardous materials.