What are Subsurface Vibro Stone Columns?
A. Vibro Stone Columns, also called vibroreplacement, consists of excavating a hole via a high-frequency vibratory tool called a vibroflot. Once the hole has been excavated, clean stone is placed into the hole in lifts, and each lift is compacted with vibration and crowd pressure. This process densifies the adjacent soil and allows for pore water pressure to dissipate from the ground, thus improving the overall bearing capacity and settlement characteristics of the soil.
