Highways

Highways

TERRAM Geosynthetics are used extensively in the construction of highways in civil engineering applications  - from preventing intermixing of sub-base and subgrade layers, control erosion on cut slopes, for roadside drainage, as part of SUDS projects for infrastructure access and in the construction of retaining walls, bridge abutments and steep slopes.

Controlling erosion on highway slopes


Controlling erosion on highway slopes

TERRAM Geocells provide immediate stability by confining the fill and greatly improving resistance to wind and surface run-off erosion.

Many variables affect the installation and performance of a slope-protection geocell, including slope angle, slope stability, the infill type, rainfall levels and irrigation (if included). It is important therefore that due consideration is given to all relevant criteria on a project by project basis.

With a topsoil fill, the stability is further enhanced as vegetation becomes established and a geocell can be used to establish vegetation on slopes where creating cover would otherwise have been problematic. The honeycomb of cells provides protection for the vegetation during the early, sensitive period of germination and growth.

Typical applications include:
• Cuttings and embankments
• Noise-deflection and environmental bunds
• Abutments
• Steepened slopes
• Soil nailing cover
• Drainage ditches
• Balancing ponds

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TERRAM Geocell controls erosion on highway and road slopes
TERRAM Geocell being installed on a road slope