Full rotary cast-in-place concrete pile enlarged base method (GSB method)

The maximum base diameter is 3000mm, and a maximum slope angle of 12 degrees can be constructed. The excavated soil can be recycled as general surplus soil.

This technology is a full-casing enlarged pile construction method that can build enlarged piles in soft rock and medium-hard rock support layers. An enlarged excavation device called the GSB bucket is attached to the tip of the casing of a general-purpose full-rotation drilling machine, and the bottom of the hole is enlarged using the rotational torque of the full-rotation drilling machine and the hydraulic telescopic arm of the GSB bucket. Since the amount of casing penetration and the extension of the arm can be managed in 1 cm increments, it allows for the construction of inclined sections with a maximum inclination angle of 12 degrees. 【Features】 ■ Enlarged excavation can be performed in very hard rock ■ Minimal pile core deviation and high vertical accuracy ■ Simple equipment for enlarged excavation ■ Adaptable to changing ground conditions ■ Capable of handling underground obstacles within a series of drilling processes *For more details, please refer to the PDF materials or feel free to contact us.

Civil Engineering Method