Dykes

Upstream cladding

The upstream cladding must be stabilised to resist fluctuations in the water level and wave pressure, by means of drainage blankets comprising a geotextile filter with rockfill on top.

The teracro geocellular structure is the efficient, economical alternative. It allows the site materials to be re-used and ensures retention, filtration and drainage.

The cladding can be waterproofed with a geomembrane liner protected by reinforced teracro© and supplemented by a teradrain© puncture-resistant material acting as a control drain.

  • Geocellular draining structure for filtration and erosion control: teracro©
  • Geomembrane barrier for waterproofing:HDPE 15/10th
  • Puncture-resistant drainage sheet for filtration, drainage and puncture resistance: teradrain©

Downstream drainage blanket

The downstream drainage blanket that is essential to improve stability by capturing infiltration is implemented by the needle-punched nonwoven composite sheet with a network of mini-drains: teradrain©

Needle-punched nonwoven composite sheet with a network of mini-drains for filtration and drainage: teradrain©

Typical applications

  • Flood embankments and bunds
  • Coastal revetments
  • Riverbank restoration & scour protection
  • Embankment soil retention
  • Grassed reservoirs & spillways
  • Flood Protection Schemes

Benefits

  • Retention of soils onto flood embankments and rivers banks
  • Long-term protection against scour and erosion
  • Support and reinforcement of grass roots

Downstream cladding

The downstream cladding must be stabilised against internal erosion to prevent channelling, by means of drainage blankets comprising a geotextile filter with rockfill on top. The teracro TD geocellular structure is the efficient, economical alternative. It allows the site materials to be re-used and ensures retention, filtration and drainage and allows revegetation.

Geocellular draining structure for filtration, drainage and retention: teracro© TD

 

Chimney drain

The dyke-structure chimney drain is traditionally constructed using sand and can be economically and reliably replaced by the teradrain© needle-punched nonwoven composite sheet with a network of mini-drains.

Needle-punched nonwoven composite sheet with a network of mini-drains for filtration and drainage: teradrain©

Additional information

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