FTJ Method/FTJ-FAN Method

FTJ Method can produce large section of improved ground at a double speed in comparison with conventional methods by ejecting large quantity of cement slurry from multi-nozzles on the tips of mixing blades with high pressure, which shortens construction period and reduces construction cost.
Besides, simultaneous usage of air discharges disaggregated soil to the ground surface, which reduces the horizontal displacement of existing structures during execution.
FTJ-FAN Method controls the direction of cement slurry ejection to create fan-shaped or rectangle-shaped sections of improved ground.
By creating flexible shapes of improved ground, the ground improvement directly under existing structures can be executed among determined areas more efficiently and economically.