Ground improvement work using large-diameter mechanical mixing deep mixing method "RAS Column Method"
Reliable construction is possible! High-quality and homogeneous improved bodies are achieved through deep mixing treatment!
The "RAS Column Method" is classified as a mechanical mixing method for deep mixing treatment, which improves the ground by forcibly mixing the original soil with cement milk using mixing blades. The drilling and mixing mechanism features a double-tube structure where the inner and outer shafts rotate in opposite directions. The inner shaft has specialized blades for drilling hard ground with high torque, while the outer shaft has blades specifically for mixing. Utilizing the effects of the forward and reverse rotation of this mechanism ensures the production of high-quality and homogeneous improved material. 【Features】 ■ Improvement diameter of up to 2,500mm is possible with a high-output auger ■ Capable of penetrating hard ground ■ The issue of cohesive soil rotating together, which has been a problem in the past, is resolved by the forward and reverse rotation ■ The rigidity of the rods is high, and the mutual forward and reverse rotation in the double-tube structure improves drilling vertical accuracy ■ The construction management system allows for real-time monitoring of the construction status *For more details, please refer to the catalog or feel free to contact us.
basic information
For more details, please refer to the catalog or feel free to contact us.
Price range
Delivery Time
Applications/Examples of results
【Uses】 ■Foundation ground improvement for structures ・Building foundations ・Tank foundations ・Retaining wall foundations ・Culvert foundations ■Others ・Liquefaction prevention ・Subgrade settlement prevention ・Embankment sliding prevention ・Stability of cut slopes ・Uplift prevention ・Underground cut beam construction ・Self-supporting retaining walls *For more details, please refer to the catalog or feel free to contact us.
