In the FTJ method, hardening agent is injected from twin nozzles at the tip of the mixing blades, to install large cross-section improvement all at once. Twin-flow slurry injection results in high-speed installation, which shortens schedules. By employing compressed air the loosened soil can be discharged at the surface, avoiding the effects of displacement on existing structures.
●Improvement Column Forms & Standard Specs
Improvement column
Jet discharge
- Soil/slope retaining
- Water cutoff
- Digging stability
- Increased bearing capacity strength
- Increased lateral resistance of pile
- Containment
- Preventing subsidence
- Mitigating liquefaction
- Preventing slippage
- Solidification
- Jet Mixing
- Low displacement implementation
- Low vibration, low noise
- Offshore implementation possible
- Space and height restrictions