RAPID IMPACT COMPACTION (RIC) - IMPACT ROLLER COMPACTION (IRC)

TECHNIQUE:

Rapid impact Compaction (RIC) was developed in the early 90’s for the repair of explosion damage to military airfield runways. Over the past 20 years, the technique has then been used for urban development. Dynamic Energy is transferred by dropping a weight from a controlled height onto a steel foot that has a diameter from 1.5 to 2m in general. Energy is transferred to ground safely and efficiently as the RIC’s foot remains in contact with the ground surface.

The technique of Impact Rolling Compaction (IRC) involves application of high energy impulses at the ground surface utilizing rollers which are usually triangular, square, or pentagonal in shape. These rollers are towed by means of a tractor. Adoption of this technique enables compaction to depths greater than it can be achieved by utilizing conventional circular rollers.

ADVANTAGES:

  • Increases soil bearing capacity.
  • Reduces total and differential settlement.
  • Increases density and collapses voids.
  • Limited vibration allowing a compaction at a close vicinity of a sensitive structure.
  • High production rate.