⦁A method of injecting a stable treatment material mixed with cement and water into a soft ground (viscous soil, sajilto, organic soil) at low pressure to rotate the special stirrer to mix the stirrups, and to create a stake in the discus using the hardening reaction of the cement to apply as a differential water and foundation

⦁Ground improvement is excellent and can reduce air quality

⦁It can be constructed on land and sea, and it is non-vibration-free

⦁K=1-cm/sec or less for pitchers with strong index and earthquake resistance