what is geonet

A geonet is a geosynthetic material consisting of integrally connected parallel sets of ribs overlying similar sets at various angles for in-plane drainage of liquids or gases.

Transnet® geonets are an extruded three dimensional bi-planar core made from virgin high density polyethylene (HDPE) for flow under high loading.

The geonet may have, heat laminated to this core, a nonwoven polypropylene geotextile for situations when the geonet has to provide a filtered drainage path. This product is called a Transnet® Geocomposite. Dependent upon the application the geotextile may be affixed to either one or two sides of the geonet core.

Applications

Transnets® Geonets may be used as either liquid or gas collectors. The typical applications for these products are in all applications that require drainage/collection of gas and leachates (mining and landfill) and filtration of sediments contained within these liquids. Transnet® is specially formulated to allow for use in high load applications such as landfill cells and where compression resistance is critical.

For detailed properties of the Transnet® Geonet/geocomposite range please refer to the Transnet® Data Sheets and the technical notes that detail the positive features of this product range.

Use & Purpose

  • Drainage
  • Leak Detection

Highlights

  • Economical Alternative To Traditional Granular Methods
  • Excellent Drainage Distribution
  • High Compressive Strength
  • Lightweight And Easy To Install
  • Wide Width Rolls

Why do we need to use geonet?

The usage areas of these products vary depending on the requirements of the project at hand. These products have a multitude of diverse usage purposes, the first being the separation of two soil types. The aim of separating dissimilar ground structures is to prevent granular soils from losing their functionality. Exposure to pollutants and fine-grained soils can compromise the characteristics of these two soil types. Another key application of geonets is for soil reinforcement, where these products enhance the load-bearing capacity of the existing system through the effects of friction and interlocking.

Geonet drainage facilitates the flow of excess water horizontally while also protecting constructions from the detrimental effects of water. The inclusion of a geonet drainage layer helps mitigate various impacts of water. Additionally, these products allow for the movement of water from the surface while preventing the loss of fertile topsoil. In erosion control, geonet drainage is highly effective.

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The Benefits of Geonets

Erosion control

Geonets serve as soil stabilizers, preventing erosion and ensuring the safety of slopes and embankments.

Landfill leachate management

As a critical component in landfill liner systems, geonets help collect and remove leachate, thus preventing groundwater contamination.

Gas venting

Geonets installed in landfill cover systems allow for safe and effective gas venting, mitigating the risk of explosions and reducing greenhouse gas emissions.

Mining

 Geonets are employed for heap leaching processes in the mining industry, aiding in the collection and management of leachate and maintaining the integrity of the heap