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drainage layer Applications

  • Tunnels

    The geotextile performs two primary functions when used in the construction of tunnels:- 1. Protection of the linear from abrasion and puncture by protrusions from the base surface of the tunnel well. 2.Drainage of water seeping through the rock and sprayed concrete layer. The in-plane oermeability of the geotextile enables the water to flow to a subsurface drainage collection system. where it is directed awa from the tunne

    By Manas Geo Tech India Pvt. Ltd. based in New Delhi, INDIA.

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    Erosion & stormwater control solutions for the roads & highways sector

    The GEOWEB system offers design flexibility for unpaved roadway surfaces, base stabilization, road shoulders as well as erosion protection of embankments and stormwater drainage channels. The 3D GEOWEB structure offers strength improvements to the road base layer for asphaltic and concrete pavements far greater than delivered by geogrids. A single GEOWEB layer performs well over soft subgrades - while geogrids require 2-3 layers for the same benefit - saving cost and construction time. Unpaved roads built with the GEOWEB system are permeable, and require 50% less infill. Roadway slope and channel designs include vegetation, aggregate or concrete protection.

    By Presto Geosystems based in Appleton, WISCONSIN (USA).

  • PEHD membrane sealing systems for retrofitting in existing landfill site

    It is also possible to retrofit a monitoring system in existing surface sealing liners without impairing the synthetic liner sheet or the immediately adjacent functional layers. For this purpose, cable trenches must be dug in the recultivation layer above the drainage layer. The detection cables are then laid in these trenches.

    By ELD Environmental Leak Detection GmbH based in Berlin, GERMANY.

  • Protection and Filtration for Industry and waste areas

    Geotextiles enhance both drainage and lining systems in environmental applications. In the large industry of waste containment, geotextiles are used to protect and cushion landfill liners and landfill capping systems, and they are used as critical components of geocomposites such as geocomposite drains and geosynthetic clay liners. Heavyweight, needle-punched nonwovens are use as cushion/protection for landfill and pond liners to keep adjacent stones in overlying or underlying drainage layers from puncturing the impermeable liner.

    By Mattex Geosynthetics based in Dubai, UNITED ARAB EMIRATES.

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