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Geocellular Systems in Stormwater Management
Martin Lambley Wavin UKMark Goodger Hydro International
3rd August 2016
• The leading trade federation of the UK plastics industry
• Forum for exchange of technical expertise and experience
• Coordinates response to specific industry issues and focal point for communication
• Informs and influences standards
British Plastics Federation Pipes Group
August 2016
• Active in development of new European standards for geocellular systems• Product standard for geocellular elements (box)
• Short term test standard
• Long term test standard
• Contributors in projects to produce regulatory and best practice guidance.
Systems for storm water handling
August 2016
• Modular plastic units with high porosity – typically around 95%
• Used to create below ground structures for the temporary storage of stormwater before controlled release (or re-use)
• Sit within the EA SuDS hierarchy for flood reduction• Not new – been in use since 1987
Geocellular Systems
August 2016
Geocellular Systems
August 2016
Geocellular Systems
Modular tanks have two basic components• The ‘structural frame’
provides stiffness and strength through the geocell unit
• The ‘skin’ keeps out soil and backfill and is delivered through a geomembrane or geotextile
August 2016
Typical Construction
Extracted from CIRIA C753 – The SuDS Manual 2015
August 2016
Herne Hill and Dulwich Flood Alleviation Scheme, Southwark
Case Study
August 2016
Case Study: Herne Hill & Dulwich Flood Alleviation Scheme, Southwark
Source: EA Surface Water Flood Maps2004 flooding in Turney Road.
Source: Alastair Macdonald, resident (via WaterProjectsOnline)
August 2016
Source: Southwark Council, Dulwich Park Proposals Plan
August 2016
Case Study: Herne Hill & Dulwich Flood Alleviation Scheme, Southwark
August 2016
The End
August 2016
