Rapid Impact Compaction (RIC) is method used to design shallow layers of loose fills using a excavator outfitted with a hydraulic hammer.

Common Uses

  • Improve bearing capacity
  • Reduce settlement

Technical Details

Rapid impact compaction (RIC) densifies shallow layers (typically 3-4 m) of loose fill materials to allow for the construction of shallow spread footings. The hydraulic hammer used repeatedly strikes the ground where an impact plate sits. The energy from the blow is transmitted to the underlying soils, rearranging the particles into a strengthened matrix. Subsurface conditions and foundation geometry determine the spacing of impact locations on a grid pattern.