Large excavator rapid impact compaction - rapid impact compactor loess foundation treatment

About This

Large-scale excavator rapid impact compaction construction, rapid impact compaction loess foundation treatment, rapid impact compaction machine is implemented through the ramming plate with buffer pad and static pressure on the ground due to the action of the rammer on the ground, which is similar to the traditional tamping technology. It has a small peak force, long action time, soft function, not easy to cut and fill streamlines, and has the functions of dustproof and anti-splash. Compared with the traditional surface rolling technology, its penetration is strong and uniform, and it is not easy to form surface induration in the basic treatment, and a more uniform density can be obtained in a larger depth range. As a general-purpose motorized rapid impact compactor, for the straight compaction structure without the compaction plate, the action mechanism of the ground and the traditional compaction technology (dynamic compaction, etc.) have greater compaction strength, and can also be used for crushing the ground and other structures .

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