Housing founded on Environmental Stone Columns | Vibro | Keller UK

Langford, Beds, Housing founded on Environmental Stone Columns

Keller were asked to treat a granular made ground containing mild contamination on a filled site in Bedfordshire. Such soils are ideal for vibro treatment and consistently provide a much cheaper solution than with conventional piling.

The Environmental plan needed to adress the short term issue of rainwater washing contamination into an underlying aquifer. Keller suggested the use of lean mix concrete plugs would be one way of reducing (but not completely eliminating ) this risk. One metre deep plugs were installed using a vibrocat rig in the area of the site of concern.

The combined cost of the plugs and vibro together with simple strip foundations showed significant savings over the alternative piled solution.

Case Studies