CeTeau - High Impact Roller Compaction

Unlike the principle of the weight dropped from a height (i.e. Dynamic Compaction and High Impact Compaction) the “weight” of the HIRC is “pulled” from a tractor, making each turn of the odd shape “wheel” an energy impact wave delivered into the ground, hence densifying the soil. The depth of densification is less than the Dynamic Compaction or Rapid Impact Compaction. Therefore, HIRC is considered a superficial compaction method.

• An economic and fast way of densifying large extensions of land whereby the top 1.5m to 2.0m needs to be compacted in one effort, as compared to layer by layer compaction.
• Employed as compaction technique for superficial soils, complementary to VC, and DC in reclamation projects, buildings, offshore and nearshore man-made islands, pipelines, road and rail embankments, power plants, infrastructure in general.

• Fast, relatively inexpensive compared to compacting by layers.
• Does not require multiple lifts of material placing, can compacted one layer of up 1.5-2.0 mt in one single effort.

• Limited to depth of improvement of 1.5 to 2.0m (maximum).
• Not intended for smaller projects (less than 1 Ha) as it requires certain speed and looping cycle.

The High Impact Rolling Compaction technique is applicable for sands with fines content not in excess of 10%, but can also be used (with less effectiveness) with slightly greater fines content. HIRC has a limited depth of improvement to the top 1.5m to 2.0m. It is ideally implemented as complementary to other deep compaction methods like VC or DC, which are poor in compacting superficial soils.