Erosion Control
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Due to sea or river current, fine soils of the banks start migrating causing erosion. Conventional design of cementing the banks is not a solution due to hydraulic pressure of the soil. Geotextiles allows water to pass through but resist the fine soil migration.
Filtration
Geotextile has become a handy solution for draining out the accumulated water from areas like coal yards by using French/ trench drain principle. The designers find this as a handy filter media to retain soil particle of backfill material in place, while it allows the release of accumulated hydraulic pressure.
Separation
Geotextile used as separator between the subsoil and aggregate layer of the roads. This protects the aggregate layers from sinking in the subsoil. At the same time it allows excess pore water to pass through it. As a result life of roads under dynamic loading condition improves.
Protection
(1) Solid waste and hazardous landfill structures are designed with impervious Geomembrane layer along with Geotextile thus ensuring that no ground water Contamination takes place. It also acts as drainage gallery.
(2) Use in the thermal power stations for disposing off the fly ashes in the ash-ponds constructed with impervious Geomembrane layer along with Geotextile that protects the membrane from puncturing and polluting.
Paving
Asphalt impregnated Geotextile functions as a moisture barrier and a stress relieving interlayer. It rovides several benefits to pavements. It retards the reflection cracks reduces road maintenance cost, increases the road life and improves the pavement serviceability.
Geotextile in Roads
Separates subsoil from the road aggregates
Reduces the crust thickness
Improves the performance of the road and life
Prevents soil fines from pumping up through the road aggregates
Introduction Applications
