HYSON-CELLS

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email: info@hysoncells.co.za


 
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Gallery

all constructed on clay


Relief of hydrostatic pressure


  • On the left hand side of the drain the wall is "bleeding" due to seepage of trapped water being released under hydrostatic pressure
  • All water on the base has resulted from this "bleeding"
  • The site is on "black cotton clay" and there is significant heave at the change from dry to wet seasons. The cells accommodate this heave without fracture.
  • No subsurface drains were used
  • No expansion joints used
  • No non-return valves
  • No steel reinforcing required
  • The cell fill was 18% "Ashcrete" (waste ash plus cement)
  • Drain runs at 8 metres per second

 

 

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Contact us at info@hysoncells.co.za



Other gallery topics

Introduction
Canals & stormwater
Causeways
Development
Environmental
Labour based construction
Ponds
Roads
Roads and water
Built on clay
Spillways
Walls




 
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