High Energy Impact Compaction (HEIC)

High energy impact compaction (HEIC) is a rapid controlled form of dynamic impact compaction where the energy is transferred to the soil by means of the lifting and falling motion of the non-circular rotating masses. The rotation of such masses to their highest point results in an effective potential energy build-up.

Further rotation of these masses results in the conversion of this potential energy into a falling kinetic energy, which is transferred to the soil upon the impact of lowest point of the masses with the surface of the soil.

The shape of roller depends on the soil type and moisture regime and depth of treatment needed. The rollers are pulled at relatively high speeds to generate a high-impact force that reportedly can densify material to depths which is significantly deeper than conventional static or vibratory rollers.

High Energy Impact Compaction makes use of rollers which are towed behind a vehicle and are pulled along the treatment area as described above. The result being an efficient compaction of surface fills reducing the number of layers to be compacted when compared with conventional roller compaction techniques.

This technique can be used in all foundations applications but not limited to roads and highways, earthworks, ports and harbors, container terminals, and infrastructure development.