It is used for increasing bearing strengths of soft clay and loose sand layers at upper levels of the ground profile, applying point compression to control settlement and filling the gaps with stones. Stone column can be applied typically between 60 cm and 100 cm diameters on the sea bottom or land.
Stone columns serve as “fitting” especially in fine grain ground types. It contributes to carrying the load and reducing settlement. At the same time, it functions as a vertical drain and increases settlement rate. On the other hand, stone columns compress loose layers with vibration on sand grounds and eliminates risks of liquefaction etc. Stone column application can be made with two different methods depending on ground conditions.Array