Electrokinetic Slope Stabilisation

ElectroKinetic Geosynthetics (EKG) can be applied to unstable slopes comprising hetero- and homogeneous soils, dominated by fine grained materials, which have failed owing to a combination of steepness, low strength soils and poor drainage.

The treatment is based on the electro-osmotic flow of groundwater when subjected to a voltage gradient and comprises four main components: Reduction in pore water pressure and subsequent consolidation of soft materials; reinforcement, as EKG anodes act as soil nails with the advantage of electrokinetic bond; horizontal drainage (both during active EKG treatment and long term, post treatment); physico-chemical changes in the soil, enhanced by the optional use of conditioning fluids.

Geotechnical Engineering Ltd have developed a new rig, the P45K, designed to install the electrodes required for this process to occur.

This cutting-edge technology is already being used to stabilise failing slopes in both the highways and rail sectors.