METHOD OF SETTING UP BORED PILES Russian patent published in 2018 - IPC E02D5/38 

FIELD: construction.

SUBSTANCE: invention relates to the construction, in particular to the technology of manufacturing bored piles, and can be used to create pile foundations for underground and above ground multi-level buildings and structures for various purposes, including those erected in a semi-enclosed way in cramped conditions. Method of setting up bored piles includes the formation of a cylindrical well, filling a cylindrical well with concrete, using a punch to apply pressure to the concrete, creating broadening at the heel of the pile and immersing the reinforcement cage. Well is drilled under the protection of the casing and filled with movable concrete mix, then pressure is applied to the movable concrete mix, which is transmitted only to the heel of the pile, at the top of the casing. Area of the heel of the pile heel is estimated by the amount of the concrete mixture pressed into the ground and is determined by the dependence given. After compaction, immerse the reinforcement cage and add concrete mix to the design mark.

EFFECT: technical result consists in ensuring the control of the broadening under the heel of the pile, increasing the bearing capacity of the bored pile.

1 cl, 2 dwg