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Vibration-free Compacting Technology and Relevant Products for Soft Soil Foundation

The vibration-free compacting technology for soft soil foundation is a new technology developed by CRAC independently, including matching products of vibration-free compacting device, combined-type vibration-free compacting machine and separate-type vibration-free compaction machine, etc., which obtained 2 national invention patents and 6 utility model patents.

According to working conditions, the combined-type or separate-type vibration-free compacting machine, powered by the hydraulic system, can be used to form the pile hole by compacting and transverse hole enlarging with no need for additional weight and no vibration being generated, which has been tested and applied in loess tunnels on Baoji-Lanzhou Passenger Dedicated Line.

The compacting device has the following characteristics:

1. Self weight of compacting device: 0.5t

2. Self weight of complete equipment unit:3.5t;

3. Normal hole-forming rate: 0.2 ~ 0.3m/min;

4. Application scope: soft soil foundation like collapsible loess or backfilled soil with strict vibration requirements in small and narrow space.

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