BORED PILE WITH WIDENING Russian patent published in 2024 - IPC E02D5/34 

FIELD: construction.

SUBSTANCE: invention is intended for installation of foundations, and can be used in industrial and civil construction, both when erecting new buildings and structures, and when reinforcing existing foundations in weak soils. Bored pile with broadening contains a reinforcing frame of longitudinal reinforcing bars, which are rigidly connected to each other by clamps. Pile is equipped with a casing installed to the level of the beginning of the zone of weak soils, a support plate installed at the bottom of the well with its convex surface upwards. On the lower clamp, in addition along its perimeter, longitudinal rods of the reinforcing frame are evenly distributed equal to the depth of the zone of weak soils, number of which exceeds the number of longitudinal rods of the reinforcing frame located above the lower clamp by the design value providing the specified strength of the pile in the widening of the zone of weak soils. Removable plate is installed on the reinforcement frame.

EFFECT: increased strength of the pile and operational reliability in the zone of soft soils.

1 cl, 5 dwg