METHOD FOR CONSTRUCTING BORED PILE IN SOIL Russian patent published in 2023 - IPC E02D5/38 E02D5/56 

FIELD: industrial engineering; civil engineering.

SUBSTANCE: invention can be used in the construction of pile foundations. The method of erecting a stuffed pile in the ground consists in the fact that a casing hollow pipe with a cone-shaped tip in the lower part and a screw auger mounted along the entire outer surface of the pipe is immersed in the ground to the design mark, the pipe is immersed while simultaneously rotating and pressing into the ground under external axial force. The screw auger is made in the form of blades, the width of which is 2-10% of the pipe diameter. When the design mark is reached, a metal frame is placed in the pipe cavity and the pipe is filled with concrete mixture. Then, before the concrete hardens, the casing pipe is removed from the ground. The outer diameter of the flat blades of the screw auger coincides with the diameter of the base of the tip cone. At the same time, by removing the pipe, the decompacted water-saturated soil enclosed between the flat blades of the screw auger is removed from the side surface of the well and at the same time an additional addition of concrete mixture is made into the formed space.

EFFECT: increase in the load-bearing capacity of a bored pile in the ground.

1 cl, 1 dwg