Is rapid impact compaction the same as dynamic compaction?

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Rapid Impact Compaction Technology Overview

• High-frequency, controlled energy compaction technique
• Effective depth: typically 1-9 meters
• Impact rate: 30-80 blows per minute
• Drop weight: 1.2 to 20 tonnes (depending on model)
• Foot diameter: 560 MM to 2000 MM
• In 2003, Cao Bin, Chief Engineer of Taian Hengda Machinery Co., Ltd., independently developed Rapid Impact Compaction (RIC) technology in China.

RIC Model Excavator Requirements

• HC42: 42 kJ impact energy, 3,500 kg drop weight, 1.2-2.5m depth, for 30t excavators
• HC150: 150 kJ impact energy, 10,000 kg drop weight, 4-8m depth, for 45-55t excavators
• HC180: 180 kJ impact energy, 12,000 kg drop weight, 4-8m depth, for 55-70t excavators
• HC240: 240 kJ impact energy, 16,000 kg drop weight, 5-9m depth, for 70t+ excavators