Rapid Impact Compaction (RIC) VS High Energy Impact Compaction (HEIC)

Rapid Impact Compaction (RIC) and High Energy Impact Compaction (HEIC) are both specialized soil improvement solution designed for rapid soil densification, but they are different in application and equipment.

Key Differences

• Technology and Application

RIC: Utilizes a an excavator-mounted hammer (5-16 ton) to strike on a 1.0-2.0m diameter fixed plate, deep, localized, top-down compaction (up to 8 m), ideal for loose sands, granular soils, Granular, sands, gravels and increasing bearing capacity.
HEIC: Uses heavy pentagonal or triangular drums or rollers (10-16.5 ton) rolled at high speed (10-12 km/h) to create a high-impact, kneading effect, best for mixed fill, landfills & low-strength soils.

• Depth of Improvement

RIC: Effective for deeper compaction, typically reaching depths of 2.5m to 8m.
HEIC: Typically focuses on surface to intermediate depths, generally around 3m-4m for in-situ materials.

• Method of Execution

RIC: A "top-down" approach, developing a dense plug of earth that extends deeper with repeated impacts at specific points.
HEIC: A "rolling" method that continuously applies energy over an area, providing high-speed densification and reducing the need to compact in thin layers.

• Vibration influence

RIC: Generates less vibration than traditional Dynamic Compaction (DC), making it safer for nearby structures.
HEIC: Provides consistent and uniform compaction, often minimizing settlement in heterogeneous or landfill sites.

• Site Suitability

RIC: Preferred for smaller, localized, and granular sites or for liquefaction mitigation.
HEIC: Ideal for large infrastructure developments, landfills, and covering large areas.

Summary

Both Rapid Impact Compaction (RIC) & High Energy Impact Compaction (HEIC) are innovative modern solutions for ground Improvement. RIC is best used for foundation footprints and tight spaces. HEIC is prefect for large infrastructure and road works.

Both methods are faster and cost-effective than traditional compaction type, but selection depends on the soil type, depth of improvement needed, and the overall size of the site.


     

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