Standards and rules
Soil mixing walls are designed and manufactured in accordance with DIN EN 14 679 and the recommendations of the “Construction Pits” Working Group (Arbeitskreis “Baugruben”, EAB).
The surrounding soil is mixed with cement slurry or custom mix using a frame leaded, double mixing paddle, so that a pair of columns is formed every time the mixing tool is lowered and retracted. A series of these soil concrete columns is produced to create a continuous cut-off wall. HEB profiles or double U-beams are used as static load-bearing elements.
Column diameters typically range between 50cm and 80cm, with typical bore depths of up to 16m.